Cod Simmered in Tomatoes and Spinach

This cod simmered in tomatoes and spinach is low carb and so tasty! I haven’t always been a total fish fan, but I am now and this is one of our favorites!

If you are Catholic, Fridays during Lent mean FISH. When I was growing up, fish on Friday meant baked haddock. Every week. These days, my dad is getting a little fancy with his fish … the following recipe from my dad is simple, easy, and DELICIOUS!

Cod with salt and pepper
Simple Cod! So good.

Cod doesn’t need much preparation. I usually lightly salt and pepper it before cooking. That’s it.

spinach leaves

This recipe couldn’t get much easier. If I have olives on hand, I add those in with the tomatoes.

tomatoes and olives
Tomatoes and olive – perfect combination!
Cod Simmered in Tomatoes and Spinach Recipe 

Cod Simmered in Tomatoes and Spinach Recipe

Course Dinner
Cuisine American, fish, Seafood
Keyword keto, low carb, Seafood
Prep Time 10 minutes
Cook Time 20 minutes
Servings 6
Calories 5065228 kcal
Author Erin Brighton


  • 1 - 2 pounds cod cut into a few serving size pieces
  • 3 T. olive oil
  • 1 med. onion chopped
  • 2 cloves garlic chopped
  • 4 fresh basil leaves torn into pieces
  • 1 can diced tomatoes or 5 or 6 plum tomatoes, diced
  • 1 t. sugar
  • 1/4 c. fresh parsley chopped (optional)
  • red pepper flakes - a quick shake optional
  • 2 c. fresh spinach wash and remove stem


  1. Sprinkle cod with salt and pepper. Set aside.
  2. In medium skillet, heat olive oil. Add onion and basil, and a little salt and pepper.
  3. Add garlic, chopped tomatoes, sugar, parsley, red pepper flakes. Cook about 8 minutes on medium until sauce is thickened.
  4. Place the cod in the tomato sauce, spooning sauce over fish.
  5. Cook 8 to 10 minutes until fish is white.
  6. Place spinach on top of the fish and cover. Cook until spinach has wilted over the cod - about 2 minutes.

Recipe Notes

Serve over rice. To make a good rice for this dish ... saute 3 cloves garlic in 1 T. butter, add 1 1/2 c. jasmine rice and 1 chicken bouillon cube, add 3 c. water. Bring to a boil. Return to low and cook for 20 minutes.

Other favorite seafood recipes … 

Garlicky Shrimp With Broccoli Rabe and Cauliflower Rice

Easiest Shrimp Scampi (5 ingredients, 15 minutes)

Papa’s Fish Chowder

Amazing Fish Tacos in Tequila and Lime



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