Why You’ll Love This Recipe
- One-pan convenience: This casserole simplifies your cooking process by combining all ingredients in one dish.
- Flavorful and rich: The combination of seafood, creamy sauce, and a crispy topping creates a harmonious blend of flavors and textures.
- Versatile: Easily adaptable to different dietary needs and preferences.
- Impressive presentation: Perfect for entertaining guests or enjoying a special family dinner.
- Quick to prepare: With a prep time of just 20 minutes, it’s ideal for busy weeknights.
Ingredients & Preparation Notes
- Shrimp: Choose large, fresh shrimp for the best texture. If using frozen, thaw them completely before cooking.
- Scallops: Opt for sea scallops and cut them in half if they are particularly large to ensure even cooking.
- Butter: Unsalted butter allows you to control the saltiness of the dish.
- Heavy cream: Provides richness to the sauce; you can substitute with half-and-half for a lighter version.
- Chicken broth: Use low-sodium to manage the salt content. Vegetable broth works as a substitute.
- Lemon juice: Freshly squeezed lemon juice adds a bright note to balance the richness.
- All-purpose flour: Used to thicken the sauce; gluten-free flour can be used for a gluten-free option.
- Old Bay seasoning: Adds a unique seafood flavor; feel free to experiment with other seafood seasonings.
- Breadcrumbs: Panko breadcrumbs give a crispier texture; regular breadcrumbs or gluten-free breadcrumbs can be used.
- Parmesan cheese: Grated Parmesan adds a nutty flavor to the topping.
- Parsley: Fresh parsley adds color and freshness to the dish.
Professional Tips & Techniques
- Roux creation: The roux (butter and flour mixture) is crucial for thickening the sauce. Cook it for about a minute to remove the raw flour taste without letting it brown.
- Temperature control: Cook the seafood just until it starts to turn opaque. Overcooking will make it tough and rubbery.
- Sauce consistency: The sauce should be thick enough to coat the back of a spoon. If it’s too thin, simmer it a bit longer; if too thick, add a bit more broth.
- Topping texture: The breadcrumb and Parmesan topping should be golden brown and crispy. Watch it closely during the last few minutes of baking to prevent burning.
- Resting time: Allowing the casserole to rest for a few minutes after baking helps the flavors meld and makes it easier to serve.
Recipe Variations
- Vegetarian option: Replace the seafood with a mix of mushrooms, cauliflower, and spinach for a hearty vegetarian casserole.
- Gluten-free: Use gluten-free flour and breadcrumbs to make this dish suitable for those with gluten sensitivities.
- Low-carb: Omit the breadcrumbs and increase the amount of Parmesan cheese for a low-carb version.
- Spicy kick: Add a pinch of cayenne pepper or some diced jalapeños to the sauce for a spicy twist.
- Herb-infused: Mix in some chopped fresh herbs like dill or tarragon to the sauce for an aromatic variation.
- Cheesy delight: Incorporate shredded cheddar or Swiss cheese into the sauce for a cheesier casserole.
- Mediterranean flair: Add olives, sun-dried tomatoes, and feta cheese for a Mediterranean-inspired version.
- Seafood medley: Experiment with different seafood like crab, lobster, or clams to create your own unique blend.
Serving Suggestions
- Family dinner: Serve the casserole with a side of steamed green beans or asparagus for a complete meal.
- Special occasion: Pair it with a Caesar salad and garlic bread for an elegant dinner party.
- Casual gathering: Accompany it with a simple mixed green salad and crusty bread for a relaxed meal with friends.
- Presentation tip: Use a serving spoon to gently scoop out portions, ensuring you get a bit of the crispy topping with each serving.
- Wine pairing: A crisp white wine like Sauvignon Blanc or Pinot Grigio complements the seafood flavors beautifully.
Storage & Make-Ahead Tips
- Refrigeration: Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Freezing: You can freeze the casserole before baking. Assemble it in a freezer-safe dish, cover tightly, and freeze for up to 2 months. Thaw in the refrigerator overnight before baking.
- Make-ahead: Prepare the casserole up to the point of adding the breadcrumb topping. Refrigerate it overnight, then add the topping and bake when ready to serve.
- Reheating: Reheat individual portions in the microwave or the entire casserole in a 350°F (175°C) oven until heated through.
Frequently Asked Questions
Q: Can I make this ahead of time?
Yes, you can prepare the casserole up to the point of adding the breadcrumb topping and refrigerate it overnight. Add the topping just before baking.
Q: Can I use frozen seafood?
Yes, but ensure it’s completely thawed before cooking to prevent excess moisture in the dish.
Q: What can I use instead of heavy cream?
Half-and-half or whole milk can be used for a lighter version, though the sauce will be less rich.
Q: Can I use a different type of seafood?
Absolutely! Feel free to experiment with crab, lobster, or clams to create your own seafood medley.
Q: How do I know when the casserole is done?
The casserole is done when it’s bubbly around the edges and the topping is golden brown. It should take about 25-30 minutes.
Q: Can I make this dish gluten-free?
Yes, use gluten-free flour and breadcrumbs to make this recipe suitable for those with gluten sensitivities.
Q: What side dishes pair well with this casserole?
Steamed green beans, asparagus, or a simple mixed green salad complement the casserole nicely.
Q: How can I add more flavor to the dish?
Try adding a pinch of cayenne pepper or some chopped fresh herbs like dill or tarragon to the sauce for an extra flavor boost.
Conclusion
This Seafood Casserole is a versatile and delicious dish that’s perfect for any occasion. With its rich, creamy sauce and crispy topping, it’s sure to become a favorite in your household. The recipe is easy to follow, and the professional tips ensure you’ll achieve the best results every time.
Give it a try and let us know how it turns out! Don’t forget to share your experience on social media and tag us for a chance to be featured. Enjoy your meal!

Seafood Casserole
Equipment
- 9x13-inch baking dish
- Large skillet
- Whisk
- Oven
Ingredients
- 1 pound large shrimp peeled and deveined
- 1 pound sea scallops halved if large
- 2 tablespoons butter unsalted
- 1 cup heavy cream
- 1 cup chicken broth low-sodium
- 1 tablespoon lemon juice freshly squeezed
- 2 tablespoons all-purpose flour
- 1 teaspoon Old Bay seasoning
- 1/2 cup breadcrumbs preferably panko
- 1/4 cup Parmesan cheese grated
- 2 tablespoons fresh parsley chopped, for garnish
- Salt and pepper to taste
Instructions
- Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish with a bit of butter or non-stick spray.
- In a large skillet, melt 2 tablespoons of butter over medium heat. Add the shrimp and scallops, cooking for 2-3 minutes until they start to turn opaque. Remove the seafood from the skillet and set aside.
- In the same skillet, whisk in the flour and cook for about 1 minute to create a roux. Gradually whisk in the chicken broth and heavy cream, stirring constantly to prevent lumps. Bring the mixture to a simmer and cook until it thickens, about 5 minutes.
- Stir in the lemon juice and Old Bay seasoning. Season with salt and pepper to taste. Remove the skillet from heat and gently fold in the cooked shrimp and scallops.
- Pour the seafood mixture into the prepared baking dish. In a small bowl, mix the breadcrumbs and Parmesan cheese. Sprinkle this mixture evenly over the top of the casserole.
- Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly and the topping is golden brown.
- Remove from the oven and let it rest for 5 minutes before serving. Garnish with fresh parsley and serve warm.
