Seafood Gratin

A bubbling, golden-topped seafood gratin is the kind of dish that feels indulgent without being fussy. This version pairs sweet shrimp and tender scallops with a silky cream sauce and a brown, cheesy crust — perfect for a cozy weeknight that’s trying to feel a little special or a small dinner party when you want something impressive with minimal fuss. If you like richer starters, consider serving it alongside a lighter shellfish soup like this crab and shrimp seafood bisque for a full seafood menu.

Why you’ll love this dish

Seafood gratin hits a sweet spot: luxurious, quick, and forgiving. It takes high-impact ingredients — shrimp, scallops, cream, and melting cheese — and turns them into a showstopping bake in under an hour. It’s great for special occasions (holiday seafood night), date night, or anytime you want to elevate a simple protein with minimal technique.

“I brought this to a small family dinner and everyone asked for seconds — the top was perfectly golden and the seafood stayed tender.” — a reader-style mini review

Reasons to try it:

  • Fast: shrimp and scallops cook in minutes, so the whole prep+bake is quick.
  • Crowd-pleasing: creamy, cheesy, and familiar flavors kids and adults enjoy.
  • Versatile: serve on bread, pasta, or spooned over rice.
  • Elegant: looks restaurant-worthy with little effort.

How this recipe comes together

This is a straightforward, three-part process: lightly cook the seafood, whisk together the cream-cheese base, then combine and bake until bubbly and golden. The skillet step builds flavor through butter and garlic and prevents overcooking by starting the seafood briefly. The cream mixture adds richness and helps the cheese form a gratin crust during baking.

You’ll briefly sauté the shrimp and scallops (just until opaque), mix cream with half the cheese and parsley, layer everything in a baking dish, top with the rest of the cheese, and bake 20–25 minutes until bubbling and browned.

What you’ll need

  • 1 lb shrimp, peeled and deveined (medium to large). If using frozen, thaw and pat dry.
  • 1 lb scallops, patted dry (sea scallops preferred for size).
  • 2 cups heavy cream (or use half-and-half + 2 tablespoons butter for a lighter edge).
  • 1 cup grated cheese — Gruyère or Swiss (Gruyère browns and melts best).
  • 2 tablespoons butter.
  • 2 cloves garlic, minced.
  • 1 tablespoon fresh parsley, chopped (plus extra for garnish).
  • Salt and freshly ground black pepper to taste.
  • Fresh crusty bread or cooked pasta, for serving.

Substitution notes: Parmesan can add sharpness if you don’t have Gruyère. For dairy-free diets, use a thick cashew cream and a dairy-free melting cheese, but texture will differ.

Step-by-step instructions

  1. Preheat oven to 375°F (190°C). Butter a medium baking dish (about 9×9 or similar).
  2. Heat a skillet over medium heat and melt the butter until foaming.
  3. Add the minced garlic and sauté for about 30–60 seconds until fragrant, being careful not to brown it.
  4. Add the shrimp and scallops to the pan. Cook, stirring occasionally, just until they turn opaque — about 2–3 minutes total. Season lightly with salt and pepper. Remove from heat; they will finish cooking in the oven.
  5. In a bowl, whisk together the heavy cream, chopped parsley, and half of the grated cheese until smooth and combined. Taste and adjust seasoning.
  6. Layer the partially cooked seafood in the prepared baking dish in a single layer.
  7. Pour the cream-cheese mixture evenly over the seafood. Scatter the remaining cheese evenly on top.
  8. Bake in the preheated oven for 20–25 minutes, or until the top is golden brown and the filling is bubbly. If the top browns too quickly, loosely tent with foil.
  9. Let rest 3–5 minutes before serving. Garnish with extra parsley and a squeeze of lemon if you like.

Best ways to enjoy it

Serve this gratin hot straight from the oven. It’s fantastic spooned over fresh pasta (linguine or fettuccine), with crusty bread to mop up the sauce, or over a bed of steamed rice. For a composed meal, pair it with a crisp green salad and a glass of unoaked Chardonnay or Sauvignon Blanc.

If you want a soup starter to match the seafood theme, this gratin pairs beautifully with a lighter shellfish soup such as a crab and shrimp bisque, which echoes the creamy, briny flavors without repeating the texture.

Storage and reheating tips

  • Refrigerate: Cool to room temperature, cover tightly, and refrigerate for up to 2 days. Seafood loses quality quickly; aim to eat within that window.
  • Freeze: You can freeze the gratin (unbaked or baked) up to 1 month. If freezing unbaked, wrap tightly and thaw overnight in the refrigerator before baking; add a few extra minutes to the bake time.
  • Reheat: Reheat single portions in a 350°F (175°C) oven until warmed through (about 10–15 minutes). If reheating in a microwave, do so in short bursts to avoid rubbery seafood, finishing briefly in a hot oven if possible.
  • Food safety: Reheat to an internal temperature of 165°F (74°C) for safety. Do not refreeze seafood that has been thawed and cooked more than once.

Pro chef tips

  • Pat seafood dry: Moisture blocks browning and can make the gratin watery. Pat shrimp and scallops thoroughly before cooking.
  • Don’t overcook initially: Cook shrimp and scallops just until opaque; they’ll finish in the oven. Overcooking in the pan makes them tough.
  • Cheese choice matters: Gruyère gives a nutty, melty top; Swiss or a mild cheddar are acceptable. For extra crust, mix in a tablespoon of panko with the top cheese.
  • Flavor boosters: Add a splash (1–2 tsp) of dry white wine to the cream for brightness, or a pinch of smoked paprika for depth.
  • Control bubbling: If the sauce is too loose before baking, simmer the cream mixture briefly to thicken, then cool slightly before pouring over the seafood.

Creative twists

  • Mediterranean: Add chopped artichokes, sun-dried tomatoes, and swap Gruyère for fontina.
  • Lemon-herb: Stir in 1 tsp lemon zest and more parsley or tarragon for a fresher finish.
  • Spicy Cajun: Season seafood with a pinch of cayenne and add 1 tsp Creole seasoning to the cream.
  • Low-carb: Skip the bread/pasta and serve over riced cauliflower or a bed of sautéed spinach.
  • Shellfish mix: Add small chunks of cooked lobster or crab for a celebratory version.

Common questions

Q: Can I use frozen shrimp and scallops?
A: Yes. Thaw them overnight in the refrigerator and pat very dry before cooking to avoid excess moisture. If you cook them straight from frozen, they’ll release more water and risk a watery gratin.

Q: How can I make this lighter?
A: Replace half the heavy cream with low-fat milk and add a tablespoon of flour or cornstarch to stabilize and thicken. Reduce the cheese or use a lower-fat melting cheese. Note the texture will be slightly less rich.

Q: Will the seafood get rubbery if I bake it?
A: Not if you partially cook it first and avoid overbaking. The method here sautés the seafood just until opaque, then ovens finish gently. Watch the oven time and remove when bubbly and golden.

Q: Can I assemble ahead of time?
A: Yes — assemble and refrigerate up to 12 hours before baking. Bring straight from fridge to oven; you may need a few extra minutes of bake time.

Q: What wine pairs best?
A: A crisp, unoaked Chardonnay, Sauvignon Blanc, or a dry rosé complements the creaminess and shellfish sweetness without overpowering them.

If you want variations or adjustments for dietary needs, tell me which swap you’re considering and I’ll suggest exact measurements and technique changes.

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Seafood Gratin


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  • Author: timesaverrecipegmail-com
  • Total Time: 40 minutes
  • Yield: 4 servings
  • Diet: Pescatarian

Description

A luxurious seafood gratin with shrimp and scallops, creamy sauce, and a golden cheesy crust, ideal for cozy dinners or special occasions.


Ingredients

  • 1 lb shrimp, peeled and deveined
  • 1 lb scallops, patted dry
  • 2 cups heavy cream
  • 1 cup grated cheese (Gruyère or Swiss)
  • 2 tablespoons butter
  • 2 cloves garlic, minced
  • 1 tablespoon fresh parsley, chopped
  • Salt and freshly ground black pepper to taste
  • Fresh crusty bread or cooked pasta, for serving


Instructions

  1. Preheat oven to 375°F (190°C) and butter a medium baking dish.
  2. Melt the butter in a skillet over medium heat, then sauté garlic until fragrant.
  3. Add shrimp and scallops, cooking until opaque (2–3 minutes), and season lightly with salt and pepper.
  4. In a bowl, whisk together heavy cream, chopped parsley, and half of the cheese.
  5. Layer the seafood in the baking dish and pour the cream mixture over it, topping with remaining cheese.
  6. Bake for 20–25 minutes until the top is golden brown and bubbly.
  7. Let rest for 3–5 minutes before serving and garnish with extra parsley.

Notes

For a lighter version, use half-and-half with butter. Pair with a crisp salad and white wine.

  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: Seafood

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