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Crab and Shrimp Casserole

Crab and Shrimp Casserole

This Crab and Shrimp Casserole is a comforting and elegant seafood dish perfect for any occasion, offering a delightful blend of textures and flavors that’s surprisingly easy to whip up for a weeknight meal or to impress guests.
Prep Time 20 minutes
Cook Time 25 minutes
Resting Time 5 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Dinner, Main Course

Ingredients
  

  • 1 pound cooked shrimp peeled, deveined, and roughly chopped
  • 1 pound lump crab meat picked over for shells
  • 1 cup mayonnaise
  • 1/2 cup sour cream
  • 1/4 cup yellow onion finely chopped
  • 1/4 cup celery finely chopped
  • 2 tablespoons fresh lemon juice
  • 1 tablespoon Dijon mustard
  • 1 teaspoon Worcestershire sauce
  • 1/2 teaspoon Old Bay seasoning
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon salt (or to taste)
  • 1 cup shredded Monterey Jack cheese (or a blend of Monterey Jack and cheddar)
  • 1/2 cup Panko breadcrumbs
  • 2 tablespoons melted butter

Equipment

  • 9x13-inch baking dish
  • Large Bowl
  • Small Bowl

Method
 

  1. Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish with butter or cooking spray. This step is important to prevent the casserole from sticking.
  2. In a large bowl, combine the mayonnaise, sour cream, chopped yellow onion, chopped celery, fresh lemon juice, Dijon mustard, Worcestershire sauce, Old Bay seasoning, black pepper, and salt. Stir well until all ingredients are thoroughly incorporated and you have a smooth, creamy mixture. Taste and adjust seasoning if necessary.
    1 cup mayonnaise, 1/2 cup sour cream, 1/4 cup yellow onion, 1/4 cup celery, 2 tablespoons fresh lemon juice, 1 tablespoon Dijon mustard, 1 teaspoon Worcestershire sauce, 1/2 teaspoon Old Bay seasoning, 1/4 teaspoon black pepper, 1/4 teaspoon salt
  3. Gently fold in the chopped cooked shrimp and the picked-over lump crab meat into the creamy mixture. Be careful not to overmix, as you want to keep the crab lumps intact for a better texture.
    1 pound cooked shrimp, 1 pound lump crab meat
  4. Spoon the seafood mixture evenly into the prepared baking dish. Spread it out so it forms a relatively even layer.
  5. In a small bowl, combine the shredded Monterey Jack cheese and the Panko breadcrumbs. Add the melted butter to this mixture and toss with a fork until the breadcrumbs are evenly coated.
    1 cup shredded Monterey Jack cheese, 1/2 cup Panko breadcrumbs, 2 tablespoons melted butter
  6. Sprinkle the cheese and breadcrumb mixture evenly over the top of the seafood casserole. This topping will create a wonderfully golden and crispy crust as it bakes.
  7. Place the baking dish in the preheated oven. Bake for 25-30 minutes, or until the casserole is heated through, bubbly around the edges, and the topping is golden brown and crispy.
  8. Once baked, remove the casserole from the oven and let it rest for about 5-10 minutes before serving. This allows the flavors to meld and the casserole to set slightly, making it easier to serve.

Notes

Store any leftover Crab and Shrimp Casserole in an airtight container in the refrigerator for up to 3 days. For best results, reheat in the oven. It also freezes well.
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