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The BEST Seafood Casserole Made With Shrimp, Scallops, and Crab Meat

Seafood casserole garnished with parsley on a white plate.

This seafood casserole is the ultimate dinner casserole recipe - especially if you love seafood. It combines tender fish fillets with shrimp, scallops, buttery crab meat, and a rich cream sauce to make a hearty and super satisfying dish. Plus, it's so, so easy to make. In fact, it will only take you about 10 minutes to prep this easy seafood casserole recipe, then the oven takes care of the rest.

Ingredients

Scale

4 oz. sole fillets (or any fish fillet)

7 shrimps, peeled and deveined

6 scallops

4 oz. crab meat (or lobster meat)

4 tbsp unsalted butter

2 tbsp flour

½ cup heavy cream

¾ cup vegetable broth

1 tbsp mustard

½ tsp garlic powder

½ tsp onion powder

½ tsp dried Italian herbs

Instructions

  1. Preheat oven to 350°F (180°C). 
  2. Melt 2 tbsp of butter in a skillet over medium-high heat.
  3. Add shrimp and scallops and cook for 1 minute. Remove the shrimp and scallops from the skillet.
  4. Add a splash of stock to deglaze the skillet, then add the rest of the broth.
  5. Add heavy cream, mustard, and spices. 
  6. Mix remaining softened butter in a bowl with equal parts of flour (2 tbsps each), then add the butter-flour mixture to the skillet.
  7. Let the sauce simmer over low heat until it has slightly thickened. Then remove from the heat and stir in cooked shrimp, scallops, and crab meat. Mix to combine everything and set aside.
  8. Place the fish fillets in a baking dish and season to taste with salt and pepper. Add 2 tbsp of water and cook the fish for 10 minutes. Drain the excess water and top the fish with the prepared seafood sauce mixture. 
  9. Bake the casserole for 25 minutes or until golden.
  10. Cool briefly before serving.

Nutrition

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