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Shrimp Casserole Recipe
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Shrimp Casserole

This Shrimp Casserole is a creamy, cheesy, and buttery dish topped with crispy panko breadcrumbs. It comes together in just 30 minutes, making it perfect for holidays, potlucks, or an easy weeknight dinner.
Prep Time5 minutes
Cook Time15 minutes
Total Time20 minutes
Course: Main Course
Cuisine: American
Keyword: cheesy shrimp bake, easy seafood casserole, holiday casserole, shrimp casserole
Servings: 8
Calories: 354kcal

Ingredients

For the Casserole:

  • 2 lbs large shrimp 21-24 count, peeled and deveined
  • 1 Tbsp Old Bay Seasoning
  • 1 Tbsp salt for cooking water
  • 2/3 cup mayonnaise
  • 1/2 tsp garlic powder
  • 1/2 tsp ground black pepper
  • 4 oz shredded mozzarella cheese
  • 4 oz shredded medium cheddar cheese

For the Topping:

  • 1 Tbsp butter plus extra to grease the pan
  • 1/2 cup panko breadcrumbs

Instructions

Prep the Oven and Dish

  • Preheat the oven to 375°F.
  • Grease a 2 1/2-quart casserole dish (or a 9x9 square dish, 9-inch pie pan, or deep 10-inch skillet) with butter.

Cook the Shrimp

  • Bring a large pot of water to a boil. Add 1 Tbsp salt and 1 Tbsp Old Bay Seasoning.
  • Add the shrimp and cook for 30 seconds, just until opaque and cooked through.
  • Remove the shrimp using a strainer and transfer to a large mixing bowl.
  • Let the shrimp cool for a few minutes, then drain any excess water from the bowl (use a paper towel if necessary).

Prepare the Filling

  • Add mayonnaise, garlic powder, and black pepper to the shrimp. Stir to coat evenly.
  • Sprinkle in the shredded mozzarella and cheddar cheeses, and stir again to combine.
  • Transfer the shrimp mixture to the prepared casserole dish, spreading it evenly.

Make the Topping

  • In a separate bowl, melt 1 Tbsp butter and stir in the panko breadcrumbs until evenly moistened.
  • Sprinkle the breadcrumbs over the shrimp mixture.

Bake the Casserole

  • Bake uncovered at 375°F for 13-15 minutes, or until the center reaches 145°F (use an instant-read thermometer).
  • Broil for 1-2 minutes to brown the breadcrumbs.
  • Let the casserole rest for 15 minutes before serving. It can be served warm or at room temperature, making it great for transport.

Notes

Excess Liquid: Shrimp may release liquid during baking, especially if overcooked or improperly thawed. If this happens, soak up the liquid with a paper towel.
Baking Dish Options: You can use a 2 1/2-quart casserole dish, a deep 10-inch skillet, a 9x9 square dish, or a 9-inch pie pan.
Make Ahead: Prepare the shrimp filling (Step 3), cover with plastic wrap, and refrigerate for up to 3 days. When ready to bake, add the breadcrumb topping and bake as directed.
Leftovers: Store covered in the refrigerator for 2-3 days. Reheat in the oven or air fryer for best results.