Easy Greek Oven Baked Fish (Psari Plaki)

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Looking for interesting ways to cook fish? Fan of Mediterranean food? This delicious Greek fish recipe (AKA psari plaki) is for you! It’s so simple and healthy – just local white fish baked with tomatoes and onions and lots of yummy Greek flavors. So easy to make with just a few basic ingredients, and the oven does most of the work!

Overhead view of a piece of Greek baked fish with tomatoes and onions and basil on a patterned blue and white plate with a fork and a piece of bread with red baking dish behind.

What’s Psari Plaki?

Psari (pronouned p-SAR-ee, with an emphasis on the SAR) means fish in Greek. Give it a try! Plaki (plak-EE) is actually a classic Greek cooking method meaning baking in the oven with olive oil, vegetables and herbs.

So psari plaki is simply a delicious Greek fish dish baked in the oven in tomatoes and onions and other delicious and simple Greek flavors. It’s definitely one of those recipes that everyone in Greece has their own version of (like moussaka, pastitsio and gemista!).

I hope you enjoy mine!

Why you’ll love it

If you’re wondering how to make baked fish taste good, you’ve come to the right place!

This Mediterranean fish is one of those recipes that you’ll wish you’d known years ago. Here’s what I love about it:

  • It’s quick and easy to make. Ready in about an hour, but the oven does most of the work.
  • It’s super simple – just white fish baked in lots and lots of tomatoes and onions.
  • But it’s such an interesting way to cook fish. Red wine and Greek herbs and spices take it to next-level delicious! Read on to find out my ‘secret ingredient’ ;-).
  • It’s very healthy and low in calories, if that happens to be important to you.
  • It’s a delicious and healthy fish dinner to serve midweek, but it’s also a good choice for easy entertaining.

5 star review *****

Wow. Made it this evening and just added it to my list of regular recipes. Served with boiled rice and Greek salad. Time to see what other delights this site has to offer… (Fiona)

Ingredients

For the tomato and onion sauce

Onions: The recipe starts with 2 whole large onions. Regular white onions are fine.

Garlic: You’ll need 3 large cloves.

Good quality olive oil: To slowly cook the onions and garlic in.

Greek herbs and spices: Paprika, cinnamon & dried oregano. You could say cinnamon is the secret ingredient in many traditional Greek dishes. Don’t skip this!

Tomatoes, tomato paste and red or white wine: Mix together these 3 before pouring them into the sauce with the onions. It doesn’t matter which wine, but you can’t go wrong with a full-bodied red such as Cabernet or Merlot.

Honey: For a touch of sweetness to balance out the acidity of the tomatoes.

Fresh basil or parsley: I prefer the fresh and subtle anise flavor of basil, but by all means use parsley instead if basil isn’t available.

What kind of fish to use

Any kind of white fish fillets will work really well for this Mediterranean fish recipe. In Greece, tsipoura (sea bream) would be a great choice. Cod, haddock, snapper, tilapia, bass or grouper would all work too.

I like to use local Australian wild caught snapper – just because that’s what’s commonly available, it’s reasonably priced, and it tastes good.

I’d definitely look for a good quality, wild caught fish if the budget allowed. But you can use whatever white fish is economical and widely available where you live.

How to make it

This is so simple you won’t believe it. Essentially, there are only 3 main steps.

Step 1: Start by gently cooking the sliced onions for about 10 minutes, then add garlic. You might think it looks like a lot of onions. It is, but that’s OK!

frying onions in a pan for Greek baked fish

Step 2: Then add the can of tomatoes, tomato paste and the wine, plus all the yummy Greek herbs and spices (and of course salt and pepper).

cooking onions and tomatoes in a frying pan for Greek baked fish

Step 3: Let simmer for about 15 minutes. Then stir in the honey and fresh herbs. Pour over the fish and bake for about 30 minutes.

closeup of Ingredients in a pan for Greek baked fish

Put your feet up while it cooks! Then serve immediately and enjoy!

Closeup of someone spooning Greek fish baked in tomatoes and onions from a red baking dish.

How to serve

We tend to keep our wonderful Greek baked fish or ‘psari plaki’ simple:

  • Serve everyone some of the delicious oven roasted fish in the yummy and healthy Mediterranean tomato onion sauce.
  • Optionally, serve a big traditional Greek salad on the side (if you have the energy, or if you’re serving this meal to guests!)

Other side dish possibilities could include:

  • Rice! Several readers have enjoyed this Greek style baked fish with rice on the side. This Greek lemon rice is perfect, and you can make it either on your stove-top or in your Instant Pot (pressure cooker).

Looking for more Greek style sides? Take a look at this collection of 21 easy Greek side dishes for loads of delicious inspiration!

A closeup of Greek white fish with tomatoes and onions on a blue patterned dish with fresh basil and a fork.

Recipe FAQ

Should I cover the fish when baking it?

No, there is no need to cover the dish for this recipe, which makes it even easier!

How do I know when the fish is cooked?

To check if fish is done, just insert a fork in the thickest part and twist it to see if the fish easily flakes. If it still looks opaque in the middle, give it a few more minutes before checking again. If you have a food thermometer, the internal temperature should be 145F/63C.

Can I reheat the leftovers?

Fish cooks quickly and can be easily overcooked, so it’s always best eaten when first cooked. If you have leftovers, however, you can reheat them gently in the oven. Just cover with aluminium foil and warm through at around 275F/135C for about 15 minutes or until piping hot again.

I don’t recommend using the microwave to reheat this. It’s too easy to overheat the fish, making it tough and dry.

More easy fish dinners

If you like this recipe, please do also check out some of my other easy Greek recipes!

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Closeup of someone spooning Greek fish baked in tomatoes and onions from a red baking dish.
5 from 20 votes

Easy Greek Oven Baked Fish (Psari Plaki)

If you’re looking for an interesting, delicious and healthy way to cook fish on a week night, you'll love this easy Greek baked fish! Make a quick tomato and onion sauce packed with simple Mediterranean flavours, pour it over the fish and bake for 30 minutes. Serve alone with fresh bread or 2-minute olive oil toasts, or with a Greek salad if you're serving it to guests.
Prep: 5 minutes
Cook: 1 hour
Total: 1 hour 5 minutes
Servings: 4

Ingredients 
 

  • 2 tablespoons olive oil
  • 2 large onions, halved then sliced thinly
  • 3 cloves garlic, crushed or sliced
  • 1 teaspoon paprika
  • 1 teaspoon oregano and/or other dried herbs
  • 1 teaspoon cinnamon
  • a big pinch each of salt & pepper
  • 14 ounces chopped tomatoes, 1 can
  • 1 tablespoon tomato paste, mixed with ¼ cup water (UK = tomato puree)
  • ½ cup red or white wine
  • 1 teaspoon honey
  • ½ cup basil, (fresh) plus extra for sprinkling at the end (or use parsley)
  • 1 pound fish fillets, I used 4 fillets of wild caught snapper fillets, as I’m in Australia, but use any good quality white fish that's good where you live.

To serve

Instructions 

  • Cook the onions in the olive oil for about 10 minutes or until soft, sweet and starting to colour.
    2 large onions, 2 tablespoons olive oil
  • Add the garlic and cook for another minute or two.
    3 cloves garlic
  • Add the rest of the sauce ingredients (everything except the fish and fresh basil or parsley). Bring to the boil, then lower the heat and simmer for about 15 minutes or until the sauce has reduced and thickened slightly.
    1 teaspoon paprika, 1 teaspoon oregano and/or other dried herbs, 1 teaspoon cinnamon, a big pinch each of salt & pepper, 14 ounces chopped tomatoes, 1 tablespoon tomato paste, ½ cup red or white wine
  • Stir in the honey and then the fresh herbs (basil or parsley).
    1 teaspoon honey, ½ cup basil
  • Meanwhile, preheat the oven to 190C/355F. Lay the fish in a medium-sized baking dish in a single layer.
    1 pound fish fillets
  • When the sauce is ready, pour it all over the fish in the baking dish. Bake uncovered for 30 minutes or until the fish is just cooked through (internal temperature should be 145F/63C).
  • Sprinkle with extra fresh basil or parsley, then serve with the toasted bread or whichever side dishes you have decided on.
    fresh bread or toasted bread with salt and olive oil, Greek salad

Video

Notes

Recipe based on this recipe in the New York Times. 
What fish to use: Use any local wild caught white fish. I tend to choose any variety of snapper that seems reasonably priced and wild caught, as I’m in Australia. Cod, grouper, tilapia, haddock, bass would all work in other locations.
What to serve with it: We usually keep it simple and serve the fish with some nice toasted bread with olive oil and salt, but rice would go well (try Greek lemon rice with chickpeas), as would roasted/baked potatoes.
Try these Greek potatoes if you’re feeling particularly brave (brave because they’re addictive!).
I sometimes also serve a Greek salad with this, particularly if I’m serving it to guests.
Storage and reheating: This baked fish is best served when first cooked. However, leftovers will keep well in the fridge for up to 2 days. 
To reheat, cover with aluminium foil and reheat for about 15 minutes at 275F/135C or until piping hot.
I don’t recommend reheating in the microwave – it’s too easy to ruin the fish by overheating it and making it tough and dry.

Nutrition

Calories: 258kcal, Carbohydrates: 15g, Protein: 25g, Fat: 9g, Saturated Fat: 2g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 6g, Cholesterol: 57mg, Sodium: 238mg, Potassium: 750mg, Fiber: 3g, Sugar: 8g, Vitamin A: 585IU, Vitamin C: 17mg, Calcium: 79mg, Iron: 2mg
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About Helen Schofield

Don't expect to find anything fussy or complicated here. Just QUICK, EASY & (mostly!) HEALTHY recipes from the Mediterranean and beyond. ENJOY!

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28 Comments

  1. 5 stars
    Super recipe. Even my kids with their reservations ate like champs. Flavours well balanced. Potatoes and garlic bread on the side compliments it well.

    For sweeter sauce extra tspoon honey

    1. Aww, being the mum of a fussy little one as well, I am so happy to read this! Thank you so much for letting me know the whole family enjoyed it. I will have to try this one again with mine, and potatoes and garlic bread sound perfect!

  2. 5 stars
    Absolutely delicious and easy to make too, particularly if entertaining as it looks after itself. I suggest you do not over reduce the sauce (which I did) then have to add more wine! It reheats in the microwave wonderfully well.

    1. Oh dear, that is awful that you had to add more wine 😉 Haha, seriously though I’m so happy you enjoyed it, and thanks so much for the tip re. reducing. It’s good to hear that it reheated well, too! 🙂

  3. 5 stars
    A Greek client gave this recipe to me years ago, but I misplaced it. I was so happy to run across this. It is so delicious! My family eats seafood on Christmas Eve, so this will be my contribution to the meal. Excellent the next day as well.

    1. Ahh this is so wonderful to hear, Susan! Thank you so much for letting me know, and I truly hope that everyone enjoys it on Christmas Eve. Merry Christmas!