Classic Seafood Casserole for Family Dinner

Seafood casserole is a hearty, creamy dish perfect for family dinners or special occasions. Packed with shrimp, fish, and tender vegetables in a flavorful cream sauce, it’s baked to golden perfection for a comforting meal. This recipe is simple to make, bursting with flavors, and can be prepared ahead for convenience.

Why You’ll Love This Recipe

• Rich & Creamy: Velvety sauce with perfectly cooked seafood.
• Easy to Make: Simple ingredients, minimal prep, baked to perfection.
• Versatile: Use any combination of fish, shrimp, or shellfish.
• Crowd-Pleaser: Perfect for holidays, family dinners, or entertaining.
• Make Ahead: Can be prepared in advance and baked just before serving.

Ingredients

• 1 lb shrimp, peeled and deveined
• 1 lb white fish (cod, haddock), cut into chunks
• 1 cup mushrooms, sliced
• 1 cup broccoli florets
• 1 small onion, diced
• 2 cloves garlic, minced
• 3 tablespoons butter
• 3 tablespoons all-purpose flour
• 1 ½ cups milk
• ½ cup heavy cream
• 1 teaspoon paprika
• 1 teaspoon dried thyme
• Salt and black pepper to taste
• 1 cup shredded cheddar cheese
• ½ cup breadcrumbs
• Optional garnish: parsley, lemon wedges

Step-by-Step Instructions

1. Preheat Oven: Set oven to 375°F (190°C). Grease a 9×13-inch casserole dish.
2. Cook Vegetables: In a skillet, melt butter over medium heat. Sauté onion and garlic until fragrant. Add mushrooms and broccoli, cook 3–4 minutes.
3. Make Cream Sauce: Sprinkle flour over vegetables, stirring to form a roux. Slowly whisk in milk and cream. Cook until thickened, 3–5 minutes. Season with paprika, thyme, salt, and pepper.
4. Add Seafood: Gently fold in shrimp and fish chunks into the sauce. Remove from heat.
5. Assemble Casserole: Pour mixture into prepared casserole dish. Top evenly with shredded cheddar and breadcrumbs.
6. Bake: Bake uncovered for 20–25 minutes until golden and bubbly.
7. Garnish & Serve: Sprinkle with parsley and serve with lemon wedges. Enjoy with rice, bread, or salad.

Tips & Variations

• Seafood Options: Use scallops, crab, or mixed shellfish for a different flavor.
• Vegetable Variations: Add bell peppers, peas, or zucchini.
• Cheese Options: Substitute Gruyère, mozzarella, or Parmesan for variation.
• Make Ahead: Prepare the casserole up to assembly, cover, and refrigerate until ready to bake.

Storage & Freezer Instructions

• Refrigeration: Store leftovers in an airtight container for 2–3 days.
• Freezing: Freeze in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator before reheating.
• Reheating: Bake at 350°F (175°C) for 15–20 minutes until hot and bubbly.

Serving & Pairing Ideas

• Grains: Serve over rice, quinoa, or buttery noodles.
• Sides: Pair with a crisp green salad or garlic bread.
• Garnishes: Fresh parsley, chives, or lemon wedges enhance taste and presentation.

Frequently Asked Questions

Can I use frozen seafood?

Yes, but thaw completely and pat dry to prevent excess water in the casserole.

Can I make it dairy-free?

Use coconut milk or almond milk and vegan butter; cheese can be replaced with dairy-free options.

How do I prevent overcooked shrimp?

Add shrimp towards the end of baking, or slightly undercook before baking as it will finish in the oven.

Can I assemble ahead?

Yes, assemble the casserole, cover, and refrigerate for up to 24 hours. Bake just before serving.

Ready to Make It?

This creamy, comforting seafood casserole is perfect for a special dinner or a cozy weeknight meal. With tender seafood, fresh vegetables, and golden cheesy topping, it’s a dish that impresses without stress. Save this recipe to make an indulgent, yet easy-to-follow meal anytime.

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