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Slow Cooker Mediterranean Fish Stew + VIDEO

Slow cooker Mediterranean fish stew only uses a few ingredients but it’s packed with flavor. This light & healthy soup is low-carb, paleo, and Whole30 compatible. Instructions to make this fish stew in the Instant Pot are also included. 

overhead shot of Slow Cooker Mediterranean Fish Stew in a white bowl

Ingredients For Mediterranean Fish Stew

  • Fish
  • Bell Pepper
  • Onion
  • Garlic
  • Diced Tomatoes
  • Broth
  • Seasonings: Italian seasoning, salt, pepper

collage of ingredients for Mediterranean Fish Stew

How To Make Fish Stew In The Crock-Pot

Slow Cooker

  1. Add all the ingredients to the slow cooker. Stir to mix well.
  2. Cook HIGH 2-3 hours or LOW 4-6.

Instant Pot

  1. Turn on the pressure cooker and select sauté. Once hot add oil to the pot. Add the onion & bell pepper and cook 3-5 minutes or until veggies are soft. Add the garlic and cook an additional minute. Turn off the Instant Pot.
  2. Pour in broth and deglaze the bottom of the pressure cooker by scraping all the bits off with a wooden spoon.
  3. Stir in the diced tomatoes, Italian seasoning, salt, and pepper.
  4. Close lid and seal valve. Select high pressure and set time for 7 minutes. When cook time is completed, quick release the pressure.
  5. Add the fish. Turn the pressure cooker to sauté and the fish. Cook 7-10 minutes or until fish is cooked to your liking.
overhead shot of uncooked Slow Cooker Mediterranean Fish Stew in a black slow cooker

before (slow cooker)

What Type Of Fish To Use

Technically you can use your preferred fish with in this fish stew recipe. I like to use a white fish like cod which is what you see in the pics. Salmon is another fish that cooks wells with tomatoes in the slow cooker. The fish won’t take long to cook in the slow cooker regardless of which type you use. This entire dish is done in a couple of hours.

overhead shot of cooked Slow Cooker Mediterranean Fish Stew in a black slow cooker

after (slow cooker)

Frozen or Fresh Fish

Can you use frozen fish in this stew recipe? Yes. You may need to cook the stew a little longer but it’s safe to use frozen fish with the slow cooker and Instant Pot. 

overhead shot of Slow Cooker Mediterranean Fish Stew in a white bowl

How To Serve This Fish Stew

I usually eat this Italian fish stew as-is with nothing else but that’s just me. You can serve this stew over cauliflower rice, mashed cauliflower, spaghetti squash, over zoodles, or even in lettuce wraps to keep this low-carb, paleo, or whole30. If you’re not following one of those particular lifestyles, then other serving suggestions include over white or brown rice or pasta.

Storing Leftover Fish Stew

Store leftover slow cooker fish stew in an air-tight container in the refrigerator for 3-4 days. I don’t recommend freezing any leftover soup. Personally I find that this isn’t a good stew to freeze. The fish is too delicate & doesn’t do well when it’s thawed and reheated.

overhead shot of Slow Cooker Mediterranean Fish Stew in a white bowl

FAQs & Tips

  • This is not a recipe that can sit on the WARM setting. The fish will continue to cook and either turn to mush or become very tough.
  • Get creative and add more vegetables.
  • I kept the seasonings for this fish stew simple and only used Italian seasoning, salt, and pepper. If you don’t have Italian seasoning, you can use another dried herb.
  • I used my 3.5-quart slow cooker for this recipe. 

 

Seafood Recipes

Seafood Cioppino

Italian Salmon

Salmon with Lemon & Dill

Crawfish Boil

 

 

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overhead shot of Slow Cooker Mediterranean Fish Stew in a white bowl

Italian Fish Stew

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.8 from 4 reviews

This slow cooker Mediterranean fish stew only uses a few ingredients but it’s packed with flavor. This light & healthy soup is low-carb, paleo, and Whole30 compatible. Instructions to make this fish stew in the Instant Pot are also included.

  • Total Time: 2 hours 10 mins
  • Yield: 4 servings 1x

Ingredients

Units Scale
  • 1 pound fish, cut into 1-inch pieces
  • 1 bell pepper, diced
  • 1/2 cup onion, diced
  • 1 garlic clove, minced
  • 2 cups low-sodium chicken broth
  • 15 ounces diced tomatoes
  • 1 tablespoon Italian seasoning
  • 1 teaspoon salt (or more)
  • 1/2 teaspoon pepper

Instructions

Slow Cooker

  1. Add all the ingredients to the slow cooker. Stir to mix well.
  2. Cook HIGH 2-3 hours or LOW 4-6.

Instant Pot

  1. Turn on the pressure cooker and select sauté. Once hot add oil to the pot. Add the onion & bell pepper and cook 3-5 minutes or until veggies are soft. Add the garlic and cook an additional minute. Turn off the Instant Pot.
  2. Pour in broth and deglaze the bottom of the pressure cooker by scraping all the bits off with a wooden spoon.
  3. Stir in the diced tomatoes, Italian seasoning, salt, and pepper.
  4. Close lid and seal valve. Select high pressure and set time for 7 minutes. When cook time is completed, quick release the pressure.
  5. Add the fish. Turn the pressure cooker to sauté and the fish. Cook 7-10 minutes or until fish is cooked to your liking.
  • Author: Shannon Epstein
  • Prep Time: 10 mins
  • Cook Time: 2 hours 30 mins

This post contains affiliate links. That means if you click on one of the product links, I might receive compensation. For more about my disclosure policy see here: https://fitslowcookerqueen.com/about/disclosure-policy/.

[adthrive-in-post-video-player video-id=”CXrVpwSN” upload-date=”2022-01-11T23:39:05.000Z” name=”Slow Cooker Italian Fish Stew” description=”This slow cooker Italian fish stew only uses a few ingredients. You can also make this flavorful low-carb, paleo, wholed30 fish stew in the Instant Pot.” player-type=”default” override-embed=”default”]

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Yvonne

Friday 19th of January 2024

I used sofrito, cioppino and red onions, broccoli and added jalapeno peppers at the end. I also toasted some tortilla bread for dipping. This recipe was very easy to follow and tweak. This is a great snow day meal.

SanD

Monday 6th of February 2023

My third batch of this stew is on and smells so good! For me, I add another TB of Italian seasoning and a heaping TB of minced garlic and serve topped with parmesan- oh so good! Thank you Shannon- this recipe is a keeper!

James

Sunday 15th of January 2023

Thanks for the recipes.

Lorenzo

Wednesday 29th of December 2021

This looks perfect for winter days!

Muna M Adhamy

Wednesday 12th of May 2021

question: what kind of fish would be appropriate here? It feels that if I go with Tilapia the cooking time would be different from say Cod