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Crab and Shrimp Casserole

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This crab and shrimp casserole is a creamy, indulgent seafood bake featuring tender shrimp, sweet lump crabmeat, sautéed vegetables, and a flavorful, cheesy sauce. It’s baked to golden perfection and topped with panko breadcrumbs for crunch.

Ingredients

  • 1 lb lump crabmeat
  • 1 lb large shrimp, peeled, deveined, and chopped
  • 4 tbsp butter (divided)
  • 1 yellow onion, finely chopped
  • 2 stalks celery, diced
  • 1 red bell pepper, diced
  • 2 cloves garlic, minced
  • 3 tbsp all-purpose flour
  • 1 1/2 cups whole milk or half-and-half
  • 1/2 cup mayonnaise
  • 1 tbsp Dijon mustard
  • 1 tsp Old Bay seasoning
  • Salt, to taste
  • Black pepper, to taste
  • 1/4 tsp cayenne pepper (optional)
  • 1 cup shredded cheddar cheese
  • 1/2 cup grated parmesan cheese
  • 1/2 cup panko breadcrumbs
  • 2 tbsp chopped fresh parsley (for garnish)

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish.
  2. Check crabmeat for shells and pat dry. Sauté shrimp in 1 tbsp butter until just pink and opaque. Set aside to cool, then chop.
  3. In a large skillet, melt remaining butter. Add onion, celery, and red bell pepper. Cook for 5 minutes until softened. Add garlic and sauté 1 more minute.
  4. Sprinkle flour over the vegetables and stir well. Gradually whisk in milk, cooking until the sauce thickens slightly.
  5. Remove from heat and stir in mayonnaise, Dijon mustard, Old Bay seasoning, salt, pepper, and cayenne pepper if using.
  6. Fold in crabmeat and shrimp, then mix in half the cheddar and parmesan cheese.
  7. Transfer mixture to prepared baking dish. Top with remaining cheese and panko breadcrumbs.
  8. Bake for 25–30 minutes until bubbly and golden on top.
  9. Garnish with chopped parsley and serve hot.

Notes

  • Use fresh or canned lump crabmeat—just drain and check for shells.
  • Greek yogurt can be substituted for mayonnaise for a lighter version.
  • Add cooked rice or pasta to make it a full meal.
  • A splash of white wine enhances flavor when sautéing vegetables.
  • Do not freeze; the creamy base may separate.

Nutrition

Find it online: https://recipesbyliza.com/crab-and-shrimp-casserole/