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A bubbling golden-brown seafood gratin served in a white ceramic dish. The top features an irresistible layer of melted cheese with crispy edges, garnished with fresh herbs and visible chunks of seafood and vegetables beneath the cheese crust.

30-Minute Rich & Cheesy Seafood Gratin

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Discover the delicious and indulgent 30-Minute Rich & Cheesy Seafood Gratin, a quick and luxurious seafood dish packed with tender seafood, creamy sauce, and melted cheese. Perfect for weeknights or special occasions, this easy seafood gratin recipe delivers gourmet flavors in just 30 minutes.

  • Total Time: 30 minutes
  • Yield: 4 servings 1x

Ingredients

Scale
  • 1 lb mixed seafood (shrimp, scallops, lobster meat)
  • 2 tablespoons butter
  • 3 cloves garlic, minced
  • 1 cup heavy cream
  • 1 cup shredded cheese (cheddar, Gruyère, or Parmesan)
  • 1/2 cup bread crumbs
  • 1 tablespoon fresh parsley, chopped
  • Salt and pepper to taste
  • Optional: a dash of hot sauce or lemon juice for extra zest

Instructions

  1. Preheat your oven to 375°F (190°C). Lightly grease a baking dish. In a large skillet, melt the butter over medium heat. Add the minced garlic and sauté until fragrant—about 1 minute.
  2. Add the heavy cream and bring to a gentle simmer. Stir in half of the shredded cheese until melted and smooth. Season with salt, pepper, and lemon juice if desired.
  3. Gently fold in the seafood, ensuring all pieces are coated with the sauce. Cook for 3-4 minutes until just cooked through.
  4. Transfer the seafood mixture into the prepared baking dish. Mix the remaining cheese with bread crumbs and sprinkle evenly on top.
  5. Bake for 10-15 minutes until the top is golden and bubbling.

Notes

  • Allow the gratin to cool before storing in an airtight container. Refrigerate for up to 2 days. Reheat gently in the oven or microwave, avoiding overcooking to maintain seafood tenderness.
  • Customize with different cheeses, or add spices like red pepper flakes or hot sauce for variation.
  • Author: Serena Miller
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: Seafood
  • Diet: Nut-Free

Nutrition

  • Serving Size: 1 bowl
  • Calories: 350 kcal Kcal
  • Sugar: 2 g
  • Sodium: 600 mg
  • Fat: 22 g
  • Saturated Fat: 12 g
  • Unsaturated Fat: 8 g
  • Trans Fat: 0 g
  • Carbohydrates: 15 g
  • Fiber: 1 g
  • Protein: 30 g
  • Cholesterol: 150 mg