This seafood gratin is one of those quick, elegant dishes we love to make as a team when we want something that feels special without much effort. Shrimp and scallops in a creamy sauce under bubbly cheese feel indulgent yet comforting, which for us is exactly what real food for real life is all about.
This Seafood Gratin is a delightful dish that brings together shrimp and scallops in a creamy sauce, topped with melted cheese and baked until golden. Ready in about 30 minutes, it is rich, comforting, and elegant enough for guests yet easy enough for a weeknight. Serve this seafood gratin as a cozy main course or a special appetizer.
What makes this seafood gratin so good is the creamy sauce and golden cheese. Shrimp and scallops are simmered with cream, then baked under melted cheese until bubbly and golden.
Watch the Recipe Video
Watch how this seafood gratin comes together, step by step.
Why You Will Love This Seafood Gratin
- Tender shrimp and scallops. Two sweet, delicate seafoods in every bite.
- Creamy sauce. A rich, savory cream sauce ties it together.
- Golden cheese topping. Melted cheese turns bubbly and golden.
- Quick and elegant. Ready in about 30 minutes, impressive for guests.
- Versatile. Serve it as a main course or a special appetizer.
What Makes This Seafood Gratin So Good
A classic French gratin is all about the golden, bubbly top, where a sprinkle of cheese bakes into a rich, savory crust over the seafood.
Sweet shrimp and scallops shine. Quickly cooked so they stay tender, the two seafoods bring delicate, briny flavor to the creamy sauce.
A creamy sauce ties it together. Butter, onion, garlic, broth, and cream simmer into a velvety base, brightened with a little lemon.
The tender scallops add a sweet, delicate flavor, the prized shellfish that turns just opaque and tender when gently cooked.
Optional Pro Tip: Tender Seafood, Golden Top
Do not overcook the seafood. A few minutes in the pan, just until opaque, keeps the shrimp and scallops tender before baking.
Watch the broiler. Keep an eye on the gratin so the cheese turns golden and bubbly without burning.
Tips for the Best Seafood Gratin
- Pat the seafood dry. This helps it cook and brown evenly.
- Do not overcook the seafood. Cook just until opaque before baking.
- Soften the onion well. A few minutes builds a sweet, savory base.
- Simmer the broth first. This concentrates the flavor before the cream.
- Use a good melting cheese. Gruyere or cheddar brown beautifully.
- Season to taste. Adjust salt and pepper before baking.
- Add a little lemon. It brightens the rich, creamy sauce.
- Let it rest. A few minutes after baking helps it set.
Variations and Add Ins
This seafood gratin is easy to customize.
- Add more seafood. Crab, lobster, or white fish all work well.
- Add a crumb topping. Mix breadcrumbs with the cheese for crunch.
- Make it cheesier. Stir some cheese into the sauce as well.
- Add herbs. Fresh parsley, thyme, or tarragon add a lovely note.
- Add a kick. A pinch of cayenne or red pepper flakes adds warmth.
- Add vegetables. Sauteed leeks or spinach stir in nicely.
- Serve over rice. Spoon it over rice to make it more filling.
- Use individual dishes. Bake in ramekins for an elegant presentation.
How to Store and Reheat
Store leftover seafood gratin in an airtight container in the refrigerator for up to two days. It is best enjoyed fresh.
Reheat gently in a low oven or in the microwave until just warmed through, being careful not to overcook the seafood, which can turn rubbery.
Serving Suggestions for Seafood Gratin
This seafood gratin is rich and satisfying as a main on its own. A crisp green salad makes a fresh, light side to balance the creamy, cheesy dish.
Warm crusty bread is perfect for soaking up the creamy sauce. A side of steamed or roasted vegetables rounds out the plate into a complete meal.
For an elegant first course, serve smaller portions in ramekins. A squeeze of lemon and a sprinkle of fresh parsley make a lovely finishing touch.
- With a green salad. A fresh, crisp contrast.
- With crusty bread. Perfect for the creamy sauce.
- With roasted vegetables. A simple, fresh side.
- As an appetizer. Smaller portions in ramekins.
For another bright, comforting main, our lemon chicken piccata is a lovely one to try.
Frequently Asked Questions
What seafood works best?
Shrimp and scallops are classic, but crab, lobster, or chunks of white fish all work beautifully, alone or in a mix.
Can I use frozen seafood?
Yes. Thaw it completely, rinse under cold water, and pat it dry before cooking so it does not water down the sauce.
How do I keep the seafood tender?
Cook it just until opaque before baking, and avoid overbaking, since both shrimp and scallops can turn rubbery if overcooked.
What cheese should I use?
A good melting cheese like Gruyere or cheddar browns beautifully. Use whatever you enjoy that melts well.
Can I add a crunchy topping?
Absolutely. Mix breadcrumbs or panko with the cheese for a crisp, golden crust on top.
Can I make it ahead of time?
You can assemble it ahead and refrigerate, then bake when ready, adding a few extra minutes if it goes in cold.
Is this a main or an appetizer?
Both. Serve a larger portion as a comforting main, or bake smaller portions in ramekins as an elegant first course.
How do I know when it is done?
It is done when the cheese on top is melted, bubbly, and golden brown, usually after about 15 minutes.
How do I store leftovers?
Keep them in an airtight container in the refrigerator for up to two days, and reheat gently until just warmed through.
What can I serve it with?
A green salad, crusty bread, or roasted vegetables all pair beautifully and balance the rich, creamy gratin.
An Elegant Seafood Bake
This seafood gratin brings together tender shrimp and scallops in a creamy sauce, baked under melted, golden cheese. It is rich, comforting, and elegant enough for a special occasion yet easy enough for a weeknight.
Quick to prepare and endlessly versatile, it works as a cozy main or a special appetizer. Once you try it, this seafood gratin is sure to become a favorite.
Craving more rich, creamy comfort? Our high protein creamy beef pasta is another satisfying favorite to try next.
Results vary by ingredients, equipment, and cooking conditions. Always taste and adjust seasoning as you go.
Seafood Gratin
Ingredients
Equipment
Method
- Gather fresh shrimp and scallops, or thaw frozen seafood completely, then rinse under cold water and pat dry.
- In a large skillet, melt the butter over medium heat, add the onion and garlic, and saute for 3 to 4 minutes until translucent.
- Add the shrimp and scallops and cook for about 3 minutes, until the shrimp turn pink and the scallops are opaque.
- Pour in the chicken broth and lemon juice and simmer for 2 minutes, then stir in the heavy cream, salt, and pepper until well combined.
- Transfer the seafood mixture into a baking dish and sprinkle the grated cheese on top.
- Bake at 350 F for about 15 minutes, until the cheese is bubbly and golden brown.
- Remove from the oven and let cool slightly before serving.
Nutrition
Notes
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