Shrimp Casserole
This creamy, cheesy, and buttery shrimp casserole is topped with crispy breadcrumbs for a deliciously rich and comforting dish. It’s easy to prepare in just 30 minutes and perfect for holidays or simple weeknight dinners.
Prep Time5 minutes mins
Cook Time15 minutes mins
Total Time20 minutes mins
Course: Main Course
Cuisine: American
Servings: 8
Calories: 354kcal
- 2 lbs large shrimp 21-24 count, peeled and deveined
- 1 Tbsp Old Bay Seasoning
- 1 Tbsp salt for cooking water
- ⅔ cup mayonnaise
- ½ tsp garlic powder
- ½ tsp ground black pepper
- 1 Tbsp butter plus extra to grease the pan
- ½ cup panko breadcrumbs
- 4 oz shredded mozzarella cheese
- 4 oz shredded medium cheddar cheese
Prep the Oven and Dish
Preheat the oven to 375°F (190°C).
Grease a 2 ½-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 with 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 evenly.
Sprinkle in the shredded mozzarella and cheddar cheeses and mix again.
Transfer the shrimp mixture to the prepared casserole dish, spreading it evenly.
Make the Topping
In a separate small 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!)
Excess Liquid: Some 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: Use a 2 ½-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.