Baked Fish Plaki with Tomatoes and Onions

by Mary Papoulias-Platis

Post image for Baked Fish Plaki with Tomatoes and Onions

I have been making Baked Fish Plaki for my family holidays, birthdays, and summer events for years! Any white fish can be used in this recipe. It is fast and easy to prepare and a delicious main dish served with a salad and fresh bread. Baked Fish Plaki is simply an onion-mixture with tomatoes cooked down with wine and cinnamon. Please try and not omit the cinnamon, this is what gives it a Grecian touch. Fish that can be substituted is halibut, bass, or cod. Do not use a thin fish fillet, for it will vanish into the sauce. The aroma of this dish takes me back to the seaports of Greece. This special dish was inspired by my walks along our coastal waters in California. For more detailed  cooking instructions, take a look here,  Cooking Techniques for Baked Fish with Tomatoes and Onions.

What are the Health Benefits of Eating Fish?

  1. Fish is filled with omega-3 fatty acids and vitamins such as D and B2 (riboflavin).
  2. Fish is rich in calcium and phosphorus and a great source of minerals, such as iron, zinc, iodine, magnesium, and potassium.
  3. The American Heart Association recommends eating fish at least two times per week as part of a healthy diet.
  4. Look here for more information on all sustainable caught fish from the Monterey Consumer Guide.

Baked Fish Plaki with Tomatoes and Onions

Baked Fish with Tomatoes and Onions - "Plaki "

Plaki is a traditional Sunday fish dinner in our home. This recipe can be easily doubled for company

Course Main Dish
Cuisine Greek
Keyword dinner, fish, Greek, plaki, tomatoes
Author Mary Papoulias-Platis


  • 2 pounds fresh boneless cod, bass, or halibut
  • 1/4 cup olive oil
  • 2 cloves garlic, minced
  • 4 onions, thinly sliced
  • 4 tomatoes, peeled and chopped or two cans (14 ozs.) of chopped tomatoes with juice
  • 1/2 cup parsley, chopped
  • 1/4 teaspoon cinnamon
  • 1 teaspoon oregano
  • 1 teaspoon salt
  • pepper to taste
  • 1/2 cup red wine


  1. Rinse fish and place in an oiled baking pan.
  2. For the sauce: Heat oil in frying pan and saute onions and garlic on medium heat for 10 minutes or until soft.
  3. Stir in tomatoes, parsley, cinnamon, oregano, salt, pepper, and red wine.
  4. Cook for 10 minutes. Pour sauce over fish.
  5. Bake for 45 minutes at 375 degrees. Let sit for 10-15 minutes. Spoon juice over fish.
  6. Serve warm.

Other fish dishes you can visit:

Brown Butter Pasta with Shrimp

Brown Butter Pasta with Shrimp

Greek Grilled Whole Fish with Greens and Lemons

Greek Grilled Whole Fish

Favorite Salt Baked Fish

Salt Baked Fish

Let’s eat fish!


© 2011 – 2023, Mary Papoulias-Platis. All rights reserved.

{ 4 comments… read them below or add one }

1 Nancy Cherry Eifert

Hi Mary,
The fish was delicious. I bought some fresh rockfish from Canada which held up nicely to the sauce. I think next time I may add some capers and kalamata olives. The fish wasn’t very thick and was done in about 20 minutes. I added a simple spinach salad. Larry loved it and ate the leftovers for breakfast!
Thanks for sharing!

2 sharon sifnotis

What a wonderful but simple dish to make. It turned out great! Thanks!

3 Jane

Why can’t I sign up to subscribe???

4 Mary Papoulias-Platis

I’m sorry my blog went down for awhile this month. Let me check it and I’ll get back to you.
Thank you for pointing it out to me!

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