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Cod in lemony cream sauce in a bowl.

Perfect Oven Baked Recipe For Cod Fillet In Shrimp and Mushroom Sauce

This Perfect Oven Baked Recipe For Cod Fillet In Shrimp and Mushroom Sauce is such a delicious way to serve up fish for dinner! The tender cod fillets, cooked to perfection, are baked in a light but extremely tasty sauce with chunks of tender shrimp and fresh mushrooms. This recipe has become a regular on our dinner rotation.  The flavors of onion and garlic mixed with just a hint of lemon and parmesan cheese give it such a wonderful flavor!  I was looking for a new way to serve baked fish, and this is it!
5 from 11 votes
Prep Time 15 mins
Cook Time 30 mins
Total Time 45 mins
Course Main Course
Cuisine American
Servings 6
Calories 320 kcal


  • 1.5 pounds cod fillets
  • 2 tablespoon olive oil
  • 1 cup mushrooms sliced
  • ½ onion chopped
  • 3 cloves garlic finely chopped
  • cups shrimp peeled with tail removed, chopped
  • 3 tablespoon butter or margarine
  • 3 tablespoon flour
  • ½ teaspoon salt
  • teaspoon pepper
  • ½ teaspoon paprika
  • 2 tablespoon parmesan cheese
  • cups milk
  • 2 tablespoon lemon juice optional


Directions For Cod Fillet

  • Preheat oven to 400 degrees Fahrenheit.
  • Lightly grease a 9x13 baking dish.
  • Place cod fillets in the baking dish.
  • Sprinkle with salt and pepper on each fillet.
  • Bake, covered, for 15 minutes.

Directions For Shrimp and Mushroom Sauce

  • In a large frying pan, saute 1.5 cups of shrimp with ½ onion and 3 cloves of garlic in 1 tablespoon of olive oil for about 5 minutes.  Continue to cook until shrimp turns pink.
  • Add 1 cup of sliced mushrooms to the shrimp mixture and sautee for 3-4 minutes.
  • In a separate pan, melt 3 tablespoon of butter or margarine over medium-low heat.  Add in 3 tablespoon of flour.  Whisk together until smooth.
  • Add ½ teaspoon salt, ⅛ teaspoon pepper, ½ teaspoon paprika, and 2 tablespoon parmesan cheese to butter and milk mixture.
  • Whisking steadily, pour in 1.5 cups of milk.  Continue to heat until the mixture begins to thicken.
  • If you would like a little bit of lemon flavor to your sauce, add 2 tablespoon of lemon juice.  HOWEVER, this may make your milk curdle.  If this happens, not to worry, just pour the sauce mixture into a blender and blend it up.  Done! Add it back to the pot.
  • Add sauce to mushroom and shrimp mixture.  Mix well.
  • Pour over fish, and bake an additional 15 minutes. Fish will be done when it flakes with a fork.  Thick fillets will take longer to cook.  The internal temperature of the fish should be 145 F with a meat thermometer.
  • Serve with extra sauce spooned over fish.
  • Enjoy!


  1. Nutritional information is approximate and is meant as a guideline only.


Serving: 1gramsCalories: 320kcalCarbohydrates: 10gProtein: 38gFat: 14gSaturated Fat: 6gPolyunsaturated Fat: 7gCholesterol: 160mgSodium: 736mgFiber: 1gSugar: 1g
Keyword cod, fish, seafood, shrimp
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