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Shrimp Casserole Recipe

Creamy, cheesy, and topped with buttery breadcrumbs, this shrimp casserole is an easy yet elegant dish. Perfect for holidays or weeknight dinners, it’s a flavorful crowd-pleaser.
Prep Time5 minutes
Cook Time15 minutes
Cooling Time15 minutes
Total Time35 minutes
Course: Main Course
Cuisine: American
Calories: 354kcal

Ingredients

  • 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
  • 1 Tbsp butter plus extra to grease the pan
  • 1/2 cup panko breadcrumbs
  • 4 oz shredded mozzarella cheese
  • 4 oz shredded medium cheddar cheese

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

  • To the shrimp, add mayonnaise, garlic powder, and black pepper. Stir to coat the shrimp 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 a great dish for transport.

Notes

Avoid Excess Liquid: Ensure shrimp are properly thawed and patted dry to prevent excess moisture during baking.
Dish Options: Use a casserole dish, pie pan, or deep skillet for flexibility.
Make Ahead: Prepare the shrimp mixture in advance and refrigerate for up to 3 days. Add breadcrumbs just before baking.
Leftovers: Store in the fridge for 2–3 days and reheat in the oven or air fryer.