Easy Seafood Casserole Recipes

There’s nothing quite like a casserole that combines indulgence, comfort, and flavor in one dish and this Easy Seafood Casserole does exactly that. Bursting with shrimp, scallops, and crab in a creamy, velvety sauce, then topped with melted cheese and buttery breadcrumbs, it’s a dish that feels both luxurious and effortless. Perfect for weeknight dinners, holiday gatherings, or cozy weekends, this recipe is one of those easy seafood casserole recipes you’ll keep coming back to.

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Ingredients

Here’s everything you’ll need to make this crowd-pleasing casserole:

• 1 lb shrimp, peeled and deveined
• 1 lb scallops
• 1 cup cooked crab meat
• 1 cup frozen peas and carrots, thawed
• 1/2 cup chopped celery
• 1/4 cup chopped green onions
• 1/2 cup mayonnaise
• 1/2 cup sour cream
• 1 tbsp lemon juice
• 1 tsp Old Bay seasoning
• 1/2 tsp garlic powder
• Salt and pepper, to taste
• 1 cup shredded cheddar cheese
• 1/2 cup breadcrumbs
• 2 tbsp melted butter

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Instructions

1. Preheat the oven to 375°F (190°C). Grease a 9×13 baking dish.
2. In a large bowl, combine shrimp, scallops, crab, peas, carrots, celery, and green onions.
3. In a separate bowl, mix mayonnaise, sour cream, lemon juice, Old Bay, garlic powder, salt, and pepper until smooth.
4. Pour the sauce over the seafood mixture and stir gently until well coated.
5. Transfer the mixture to the prepared baking dish. Spread evenly.
6. Sprinkle with shredded cheddar cheese.
7. Mix breadcrumbs with melted butter, then sprinkle on top.
8. Bake for 25–30 minutes or until golden and bubbly.
9. Let cool slightly before serving.

Prep Time: 15 minutes | Cook Time: 30 minutes | Total Time: 45 minutes
Servings: 6 | Calories: ~360 kcal per serving

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Why This Seafood Casserole Works

This dish strikes the perfect balance of creamy, savory, and crispy textures. The trio of shrimp, scallops, and crab delivers sweet, briny seafood flavors, while the lemon and Old Bay seasoning keep it bright and flavorful. Topped with cheddar cheese and buttery breadcrumbs, every bite is pure comfort.

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Tips for Perfecting Your Casserole

• Don’t overcook the seafood – it cooks quickly in the oven.
• Use fresh or thawed seafood for the best flavor and texture.
• Customize the topping with parmesan, panko, or crushed crackers.
• Add veggies like mushrooms, spinach, or bell peppers for extra nutrition.

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Serving Suggestions

Pair your casserole with sides that balance its richness:

• Fresh green beans or asparagus
• A crisp garden salad with vinaigrette
• Garlic bread or a crusty baguette
• Light and fluffy lemon rice or herbed quinoa

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Variations to Try

• Swap scallops for white fish or use all shrimp.
• Make it low-carb by skipping breadcrumbs or using crushed pork rinds.
• Add a layer of pasta, rice, or mashed potatoes for a heartier version.
• Spice it up with cayenne pepper or hot sauce for a bolder flavor.

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Conclusion

If you’re searching for easy seafood casserole recipes that deliver both comfort and elegance, this one is a winner. It’s simple enough for busy weeknights yet special enough to serve guests. With its creamy sauce, tender seafood, and crispy topping, it’s a dish that feels like a little trip to the coast—without leaving your kitchen.

So, the next time you’re craving something cozy and indulgent, give this Easy Seafood Casserole a try. Your family (and your taste buds) will thank you!