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Baked Cheesy Chicken Spaghetti (Freezer Meal)

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Spaghetti, colorful chopped vegetables, lots of cheese and…. canned condensed mushroom or chicken soup! But don’t be afraid. Baked cheesy chicken spaghetti is the perfect economical batch cook recipe and the ULTIMATE in tasty comfort food. The whole family will love it!

Closeup of a big serving spoon scooping out some cheesy baked chicken spaghetti from a white baking dish, all on a white background.

I came across the idea for this cheesy baked chicken spaghetti years ago while watching a rerun of The Pioneer Woman. If you’re ever feeling a little down, watch an episode or two of The Pioneer Woman and you’ll cheer yourself up in no time!

Ree has a way of making everything she makes look incredible, but she’s particularly good at these sorts of cozy, oozy, cheesy casseroles.

This is my slightly tweaked version of the dish!

Why you’ll love it

Just had a baby? Or perhaps you or your child is sick, you’re having an extra busy week, or you’re just feeling lazy today. There are times when we all want to grab a meal out of the freezer instead of making something from scratch.

This easy chicken spaghetti casserole is perfect for those days!

Here are more reasons why you’ll love it:

✔ It’s one of those fail safe recipes that everyone enjoys. It’s creamy, satisfying, nutritious and tasty – the ultimate comfort food!

✔ And yet it’s simple enough that even your pickiest kid (or grown-up!) will approve. This is one of the best freezable meals I know, but also one of the best kid-friendly freezer meals I know!

✔ It’s a very economical recipe – perfect for big families or a small crowd! You can easily feed 8, and up to 12 with simple salad or vegetables on the side.

✔ It’s the perfect make-ahead meal. I usually make a whole batch, portion into several casserole dishes, and freeze for lazy days when I don’t want to cook.

✔ Made with just a few simple and cheap pantry ingredients. Add more vegetables if you like, or optional extras for even more flavor (see below for variation ideas!).

✔ Reheats beautifully the next day. Leftovers make quick and tasty lunches!

Ingredients

Overhead image of all the ingredients needed for baked chicken spaghetti including chicken broth, chicken pieces, multi-colored peppers and an onion, condensed soup, dried herbs, mushrooms, pepper and grated cheese.

Chicken: I prefer to use boneless skinless chicken thigh chopped into small pieces. If it’s available I get ready chopped to save time. You can also use chicken breast. Shredded cooked rotisserie chicken works, too, or leftover chicken or turkey. However, I do prefer to cook the chicken myself if I know I’m going to be freezing some of the casserole.

Chopped peppers and onion: I love to grab one red, one yellow and one green pepper for this recipe, but you can use any kind of peppers you like. A regular large white onion is fine.

Add even more chopped veggies if you like. Any vegetables that cook in about the same time as peppers work, such as zucchini, celery, asparagus, or green beans. Frozen vegetables such as peas, sweet corn and carrots can work, too (no pre-cooking required!).

Mushrooms: Any kind are fine, but the tastier the better (try brown, cremini, or a mushroom medley).

Spaghetti: You can use any kind of spaghetti you like. Just follow the cooking instructions on the package to pre-cook it. Cook the pasta so that it’s ‘al dente’, which means firm or, literally, ‘to the tooth’ in Italian! If the package doesn’t say, simply cook it for a couple of minutes less than the suggested cook time.

I prefer to snap the spaghetti into 3 shorter strands as I add it to the boiling water. Of course, also feel free to use different kinds of pasta noodles for this such as fusilli (twirls) or penne (tubes).

Dried Italian herbs: Or any dried herbs.

Pepper: I like to add plenty of ground pepper. You can adjust the amount to taste, even skipping it altogether if you’re serving the meal to kids. I don’t usually add salt because I find there’s enough already in the broth and cheese.

Condensed soup: Yes, you could consider this ingredient to be a little ‘retro’. But it’s perfect for this baked chicken pasta – quick and easy (just open the cans!), creamy and flavorful and, of course, kids love it. Use chicken soup, mushroom soup, or a combination of the two.

Chicken broth/stock: I try to use good quality, but feel free to use whichever brand you have or like.

Grated cheese: For maximum cheesy flavor, I usually go for a sharp cheddar. For even more cheesy goodness, how about adding a sprinkle of parmesan cheese on top of the casserole as well?

How to make it

The step-by-step guide below should help you make the recipe perfectly first time. Scroll down to the end for the full recipe including ingredient amounts.

The first thing to do is to sauté the chicken pieces in a little oil until white and cooked through. Then empty both the chicken and any juices into a bowl and set aside while you cook the veggies.

Next, add a drizzle more oil and cook the peppers and onions, just until softened.

Collage of 2 images showing cooked chicken pieces in a large pan and cooked multi-colored peppers and onions in the same pan.

Then add the mushrooms and cook for a few minutes longer, before also stirring in the dried herbs.

Collage of 2 images showing someone adding chopped mushrooms to peppers and onions in a big pan and adding mixed dried herbs to the cooked vegetables.

At the same time as you’re cooking the chicken and vegetables, you can boil the spaghetti. When it’s done, simply drain and empty back into the saucepan with a drizzle of oil to stop the spaghetti noodles sticking.

Collage of 2 images showing someone breaking spaghetti into a large saucepan and the cooked spaghetti drained in a big red colander.

At this point, toss the cooked vegetables and spaghetti with all of the other ingredients. Toss really well!

You’ll want to save about a cup of the cheese for sprinkling over the top! If you’re making several smaller casseroles, you might want to sprinkle over even more cheese.

Collage of 2 images showing mixing together all ingredients for chicken spaghetti in a cast iron pan and then tossing them together with wooden spoons.

Then it’s time to empty the chicken spaghetti mixture into baking dishes. I usually portion it out into several dishes – one for that day’s dinner, and the rest for freezing. I find the best way to do this without getting spaghetti all over the kitchen is with two wooden spoons!

Collage of 2 images showing someone putting chicken spaghetti into a white baking dish and then sprinkling the top with grated cheese, all on a white background.

You can either bake immediately, or you can cover at this point and store in the fridge to bake later or even freeze for another day. If baking now, your delicious oven baked chicken pasta is ready when it’s bubbling and nicely golden on top (around 30 minutes).

Look at that transformation! Mmm!

Collage of 2 images showing overhead views of baked cheesy chicken spaghetti on a pale background uncooked and when it's baked just out of the oven with a spoon in it.

Helen’s top tips

  • Remember to only cook the spaghetti until ‘al dente’, or still slightly firm when you bite into it. This is because it will continue to cook slightly in the oven.
  • Snap the spaghetti strands into 3 before adding to the boiling water. This just makes it easier to combine all the ingredients, and also to serve the finished baked spaghetti.
  • Use the largest saucepan and frying pan/skillet you have. Once all the ingredients are combined, there’s a lot of food! I use a very large saucepan and a large cast iron pan and toss the mixture together in the cast iron pan with two wooden spoons.
  • Think about how many you want to serve. If serving a small crowd, use a large baking dish. If you’re feeding a family of 4, wrap, date and freeze the ‘extra’ cheesy chicken pasta in smaller baking dishes for several meals (see notes section in printable recipe below for baking pan suggestions!).

How to serve

To make this cheap and easy chicken spaghetti recipe even more the classic comfort dinner it is, a fresh crisp salad and perhaps some garlic bread is all you need to go on the side.

This refreshing Greek lettuce salad could be a good option to balance out the creamy spaghetti carbs!

If you prefer to serve it with a vegetable side, consider this simple frozen green bean recipe!

Simple pan-fried asparagus, sugar snap peas or even cherry tomatoes are more great options that only take minutes to prepare.

Strictly speaking, you don’t need to serve anything at all with your casserole. Serving something very simple with it, however, both balances out the plates and makes the meal stretch even further!

Variations

I can think of a few ways to switch up this very easy chicken spaghetti bake!

  • Add more and/or different vegetables. Any veggies that cook quickly are good choices, such as asparagus, zucchini, tomatoes, snap peas, celery, spinach, or frozen vegetables such as peas or corn.
  • Stir in a quarter to a half cup of jarred marinated vegetables such as sundried tomatoes (or just cherry tomatoes), artichokes, capers, anchovies or chopped olives before baking for extra flavor.
  • Add a can of Rotel (chunky tomatoes and green chilies) for a spiced up version!
  • Add porcini mushrooms (and any soaking juices) for extra mushroom flavor.
  • Try the recipe with leftover Thanksgiving or Christmas turkey and ham, or how about canned tuna?
  • Try the recipe with a different condensed soup flavor such as tomato or french onion.
  • Add a quarter cup of pesto, either regular or red.
  • Use 3 tablespoons of fresh herbs instead of 1 tablespoon of dried. Or sprinkle fresh herbs such as parsley or chopped green onions over the top of the finished baked spaghetti.
  • If for any reason you can’t find condensed soup to use in this recipe, feel free to substitute with jarred alfredo sauce, pasta sauce or similar.

Recipe FAQ

Can you freeze baked chicken spaghetti?

This recipe was made for freezing! Divide the creamy chicken spaghetti between your choice of baking dishes, or even disposable foil trays. Sprinkle over 1-2 cups of grated cheese, then wrap well in several layers of plastic wrap and aluminum foil. Then label with the name, date and cooking instructions. Freeze for up to 2 months. Defrost in the fridge overnight before cooking. Alternatively, cook straight from frozen, adding around 20 minutes to the cooking time.

Should I cover chicken spaghetti when baking?

No, not necessary. Bake uncovered until bubbling and nicely golden brown on top.

How long does it keep, and can you reheat it?

Chicken spaghetti with cream of mushroom or chicken soup keeps for 3-4 days in the fridge, and it reheats really well. I prefer to reheat it in individual portions in the microwave for 2 to 3 minutes or until piping hot again. Add a simple salad or vegetables on the side, and the meal will be just as delicious as when first cooked.

Can I use cooked chicken?

If you happen to have cooked chicken, or you’d prefer to use shredded rotisserie chicken, feel free to use that instead of cooking the chicken yourself. However, if using already cooked chicken, I’d eat the casserole immediately rather than freezing it. If you’re making this as a freezer meal, it’s best to cook the chicken yourself.

Can I make my own condensed soup?

If you like, you actually can! Check out these recipes from Culinary Hill for homemade condensed cream of chicken soup or homemade condensed cream of mushroom soup. They’re very easy recipes and you could always make it ahead and freeze it ready for making this baked chicken spaghetti, green bean casserole, or any other casserole that’s great with condensed soup.

Overhead view of baked cheesy chicken spaghetti in a white dish with black rim on a grey textured background with pale blue tea towel.

More easy freezer meals

  • This easy moussaka is one of our favourite meals, and is also perfect for freezing.
  • This 5-bean vegetarian chili is delicious served as nachos with all your favorite toppings. Healthy, and perfect for freezing.

IF YOU MAKE THIS RECIPE, LET ME KNOW HOW YOU GET ON BY LEAVING A COMMENT AND RATING BELOW… AND DON’T FORGET TO SIGN UP TO RECEIVE ALL MY NEW RECIPES BY EMAIL!

Closeup of a big serving spoon scooping out some cheesy baked chicken spaghetti from a white baking dish, all on a white background.

Baked Cheesy Chicken Spaghetti (Freezer Meal)

When you need an easy meal idea that the whole family will enjoy, or meals in the freezer for lazy days, this baked chicken spaghetti is perfect. Add in some colorful vegetables and condensed chicken or mushroom soup for the ultimate crowd pleasing comfort food!
5 from 6 votes
Print Recipe Pin Recipe Save
Prep Time 30 mins
Cook Time 35 mins
Cuisine American
Servings (click to change) 8 to 12
Author Helen

Equipment (affiliate links)

Ingredients (UK/Australia? Click below for grams/ml)

cups/ounces – grams/ml
  • 2 tablespoons oil for cooking
  • 1 pound skinless boneless chicken thighs Buy ready chopped, or chop into small(ish) pieces.
  • 1 onion Large, chopped.
  • 3 peppers (bell peppers/capsicum) 1 red, 1 green, 1 yellow, if possible! Chop into small pieces.
  • ½ pound mushrooms Brown mushrooms, cremini mushrooms, or perhaps a selection including shiitake or porcini mushrooms. Even white button mushrooms are fine.
  • 1 pound spaghetti Broken up into pieces (about 2 to 3 inches long).
  • 1 tablespoon dried Italian herbs Or any dried herbs. Or 3 tablespoons fresh herbs.
  • ½ teaspoon ground pepper to taste (either white or black)
  • 2 cans condensed chicken soup (Or condensed mushroom soup, or a combination of chicken and mushroom) I usually use Campbell’s, but any brand will work (two 10 oz. cans).
  • 2 cups chicken broth (stock)
  • 3 cups cheddar cheese Grated (Add an extra cup if you like).

to serve (optional)

  • garlic bread and crisp salad, or vegetables

Instructions
 

  • Heat a tablespoon of the oil in a very large pan and stir fry the chicken pieces until totally white and cooked through (around 4 or 5 minutes). Remove to a plate (along with any juices) and set aside.
    2 tablespoons oil, 1 pound skinless boneless chicken thighs
  • Add a little more oil to the pan and cook the peppers and onions together until softened (about 5 minutes). Add the mushrooms and cook for a few more minutes until the mushrooms have started to break down. Add the herbs and pepper and stir for a minute or so longer.
    1 onion, 3 peppers, ½ pound mushrooms, 1 tablespoon dried Italian herbs, ½ teaspoon ground pepper
  • Meanwhile, cook the spaghetti pieces in boiling salted water in a very large saucepan for a few minutes less than it says on the packet or until very al dente (around 6 minutes for regular spaghetti – don’t overcook as it’s going to be cooked again in the oven). Drain, empty back into the saucepan, add a drizzle of oil to stop the spaghetti sticking and put on the lid.
    1 pound spaghetti
  • Pre-heat the oven to 375F/190C.
  • Add the the spaghetti into the large pan with the vegetables. Then add the cooked chicken and any juices, soup, broth/stock, and 1 cup of the cheese. Combine well with 2 wooden spoons.
    2 cans condensed chicken soup, 2 cups chicken broth, 3 cups cheddar cheese
  • Spoon the mixture into your baking dish or dishes (see notes for suitable sizes to use) and top with the remaining 2-3 cups of cheese. At this point you can choose to freeze all or some of the casserole if you like (see notes for instructions).
  • Bake for 30 to 40 minutes or until golden and bubbling on top, then serve with garlic bread and salad or vegetables (if you like).
    garlic bread and crisp salad, or vegetables

Notes

Adapted from Pioneer Woman’s 2007 recipe for chicken spaghetti.
Freezing instructions: To freeze, pour the chicken spaghetti into baking dishes or disposable foil trays (see size suggestions below). Then sprinkle over the cheese, cover and freeze. I always write what it is, the date I made it and the cooking instructions on the top of the dish/tray. I usually defrost in the fridge overnight, then cook as normal. However, you can cook straight from frozen if you prefer. Simply add on about 20 minutes to the cooking time.
Chicken: I like chicken thigh (ready chopped) since it stays moist and tender, but you can use chicken breast instead if you like. Also feel free to use cooked chicken instead, such as shredded rotisserie chicken (this recipe is for the air fryer). Or what about leftover Christmas turkey? 2 to 2½ cups is about the right amount. Just add the chicken to the cooked spaghetti along with everything else. I would only recommend using cooked chicken, however, if you’re going to cook and eat the chicken pasta bake immediately.
Condensed soup: I recommend using either condensed mushroom soup, condensed chicken soup, or a mixture of the two. I suggest 2 x 10 ounce (285 grams) cans. If the cans are slightly larger where you live, that’s fine. It’s no problem to add slightly more soup to the recipe.
Suitable baking dish sizes to serve:
 8 people: 9 x 13 inches 
 4 people: 6 x 9 inches (or equivalent)
 2 people: 5.5 x 7.5 inches (or equivalent – this is the size of the disposable foil trays I use for my batch freezer meals for two!)
If you don’t have a cooking pan large enough to combine all the cooked ingredients in, combine them in a very large bowl instead before assembling the casserole in a baking dish (or baking dishes!). 
To reheat: Baked cheesy chicken spaghetti reheats really well. I usually reheat individual portions in the microwave. Just cover and reheat on 80% power for 2 to 3 minutes until piping hot again.
Serving suggestions: I like to serve this casserole with a very simple and healthy side such as a fresh green salad (try Greek lettuce salad) or vegetables such as frozen sautéed green beans, pan-fried asparagus or even just frozen peas.  
Variations: Why not make your spaghetti casserole with leftover Thanksgiving or Christmas turkey, or use canned tuna instead of chicken? Also consider adding more vegetables, or jarred marinated vegetables such as artichokes, sundried tomatoes, capers or olives. 

Nutrition

Calories: 576kcalCarbohydrates: 54gProtein: 32gFat: 26gSaturated Fat: 10gPolyunsaturated Fat: 3gMonounsaturated Fat: 8gTrans Fat: 0.02gCholesterol: 104mgSodium: 1088mgPotassium: 544mgFiber: 3gSugar: 5gVitamin A: 755IUVitamin C: 38mgCalcium: 349mgIron: 3mg
Tried this recipe?Let me know if you liked it!

IF YOU MAKE THIS RECIPE, LET ME KNOW HOW YOU GET ON BY LEAVING A COMMENT AND RATING BELOW… AND DON’T FORGET TO SIGN UP TO RECEIVE ALL MY NEW RECIPES BY EMAIL!

Comments

  1. Toony L. says

    5 stars
    My husband gave this recipe an A+!!! I appreciate the simple ingredients that I could just grab at my local grocery store. This recipe took quite some time, but oh, it was so worth it! Thank you so much for sharing 🙂

    Reply

    • Helen says

      Hello! Lovely to hear from you! I’m so glad you’re still following along, and even happier that you enjoyed this meal. It’s an oldie but a really good one I think. I made this to put in the freezer just before I had my son! 🙂

      Reply

    • Helen says

      Hi Gina! I wouldn’t recommend it because you need the oven to cook off some of the liquid, finish cooking the pasta, and brown the cheesy top. It may work in the microwave but I can’t guarantee it and I don’t think the results would be as good.
      You can definitely reheat in the microwave once cooked though! Good luck!

      Reply

  4. Jenn says

    5 stars
    My spouse grew up on chicken spaghetti and begs for it ALL THE TIME! Love this updated recipe!!! The added veggies are brilliant!

    Reply

    • Helen says

      Oh really? So it’s an old classic, huh? I just thought it was a Pioneer Woman invention! So glad you like this version, though. Thank you!

      Reply

  6. mira says

    Love that you made this meal ahead of time! Looks so delicious! Congrats on your beautiful baby boy! (I told you it is a boy!)! Hope you guys are doing well!

    Reply

  7. Marissa says

    so….any news?? 🙂 So excited for you. And such a clever girl getting meals ready ahead of time. I wish I could help fill your freezer myself…xo

    Reply

  8. Eva says

    Quand j’attendais mes enfants, je nettoyé tout le temps, je voulais que tout soit parfait pour mon retour de maternité, c’est vraie, ont deviens des vraies fées du logis. Il y a quelque chose de sûre ton bébé va manger comme un roi (ou une reine) parce que tu cuisines merveilleusement bien! Take care!

    Reply

  9. [email protected] says

    Why on earth would you apologise? Not at all!!!! And seriously, you’re one week away? OMG OMG!!! This looks incredible Helen. I never thought to bake spaghetti – why not, I have no idea! Thank you for the idea!! N xx

    Reply

    • Helen says

      I know – it’s a great idea, isn’t it? Can’t wait to try other versions!
      P.S. Update on the bebe coming up!

      Reply

  10. [email protected] says

    I had no idea you were expecting (where have i been). Congratulations!! Heinz cream of chicken soup was the soup I used to crave as a kid so this dish is right up my alley and it looks so comforting. I can’t wait to see your new baby.

    Reply

  11. Alyssa @ My Sequined Life says

    Oh this looks incredible! Freezer meals are so handy, and hearty ones like this are sure to satisfy any craving. Hoping you get all you want to accomplish done before the healthy and safe arrival of your little one!

    Reply

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