Shrimp Casserole

This Shrimp Casserole is a creamy, cheesy, and comforting dish that’s as elegant as it is easy. Juicy shrimp are coated in a rich mayo-based sauce, tossed with shredded cheese, and baked under a golden, buttery panko topping. Whether you’re hosting a holiday meal or simply want a satisfying weeknight dinner, this shrimp casserole is ready in just 35 minutes and always a crowd-pleaser.

Why You’ll Love This Recipe

This dish strikes the perfect balance of indulgent and simple. It uses minimal prep time, everyday ingredients, and one casserole dish—making it ideal for both entertaining and busy evenings. The shrimp stays juicy and tender, while the cheesy filling and crunchy topping deliver big flavor and satisfying texture. Bonus: it transports and reheats beautifully, so it’s great for sharing or meal prepping.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• 2 lbs large shrimp (21–24 count), peeled and deveined

• 1 tbsp Old Bay Seasoning (plus 1 tbsp salt for the cooking water)

• 2/3 cup mayonnaise

• 1/2 tsp garlic powder

• 1/2 tsp ground black pepper

• 1 tbsp butter (plus more to grease the dish)

• 1/2 cup panko bread crumbs

• 4 oz shredded mozzarella

• 4 oz shredded medium cheddar cheese

Directions

1. Preheat your oven to 375°F. Grease a 2 1/2-quart casserole dish or oven-safe skillet with butter.

2. Bring a large pot of water to a boil. Add 1 tablespoon of salt and 1 tablespoon of Old Bay Seasoning.

3. Add shrimp and cook for just 30 seconds, until they turn opaque. Remove immediately with a strainer and transfer to a large mixing bowl.

4. Let shrimp cool for a few minutes, then drain any excess liquid or blot with a paper towel.

5. Stir mayonnaise, garlic powder, and black pepper into the shrimp. Add mozzarella and cheddar cheeses and stir again until well combined.

6. Transfer the shrimp mixture to the prepared casserole dish, spreading it out evenly.

7. In a small bowl, melt 1 tablespoon of butter and stir in the panko breadcrumbs until evenly moistened. Sprinkle over the top of the casserole.

8. Bake uncovered for 13–15 minutes, or until the center reaches 145°F. Broil for 1–2 minutes at the end to brown the top.

9. Let rest for 15 minutes before serving. Can be served warm or at room temperature.

Servings and timing

This recipe yields 8 servings.
Prep Time: 5 minutes
Cook Time: 15 minutes
Cooling Time: 15 minutes
Total Time: 35 minutes

Variations

• Spicy Kick: Add a dash of hot sauce or a pinch of cayenne pepper to the shrimp mixture.

• Lemon Twist: Add fresh lemon zest or a squeeze of lemon juice for brightness.

• Herbaceous: Stir in chopped fresh parsley or chives for a fresh finish.

• Creamier Base: Mix in a few tablespoons of sour cream or cream cheese for extra richness.

• Seafood Blend: Mix in lump crab or bay scallops along with the shrimp for a seafood medley.

Storage/Reheating

Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days.
Freezing: Not recommended, as the mayo and cheese can separate upon thawing.
Reheating: Warm in the oven at 350°F for 10–15 minutes or until heated through. To keep the topping crisp, reheat uncovered.

FAQs

Can I use frozen shrimp?

Yes, just thaw them completely and pat dry before cooking.

Is this dish spicy?

Not as written, but you can easily add spice with hot sauce or cayenne pepper.

Can I make this ahead of time?

Yes. Assemble it, cover, and refrigerate up to a day in advance. Add breadcrumbs just before baking.

Can I use cooked shrimp?

Yes, skip the boiling step and just stir cooked shrimp into the mayo mixture.

What’s a good substitute for Old Bay Seasoning?

Use a mix of paprika, celery salt, black pepper, and a pinch of cayenne.

Can I use different cheese?

Absolutely—try Monterey Jack, pepper jack, or Gouda for different flavor profiles.

What should I serve with shrimp casserole?

Serve with a side salad, roasted vegetables, rice, or crusty bread.

How do I know when it’s done baking?

The internal temperature should reach 145°F and the top should be golden and bubbly.

Is this casserole gluten-free?

Not as written. Use gluten-free breadcrumbs to make it gluten-free.

Can I use smaller shrimp?

Yes, just adjust the boiling time—smaller shrimp may cook in as little as 15–20 seconds.

Conclusion

This Shrimp Casserole is a fast, flavorful, and foolproof dish that’s perfect for any occasion. Whether you’re serving it at a holiday gathering or just looking for a satisfying weeknight meal, this cheesy, creamy seafood bake will hit the spot. It’s easy to prep, quick to cook, and delivers restaurant-quality taste straight from your kitchen.

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