Step-by-step instructions
Follow these simple steps to create your Seafood Gratin:
- Preheat your oven to 180°C (350°F).
- In a pan, melt the butter over medium heat and add the sliced mushrooms. Sauté until they’re softened.
- Add the shrimp and scallops to the pan, cooking until heated through, about 3-5 minutes.
- Gently stir in the mussels and cream. Season with salt and pepper to taste.
- Transfer the seafood mixture to a suitable baking dish and sprinkle the grated cheese generously on top.
- Place the dish in the preheated oven and bake for 20-25 minutes, or until the cheese is bubbly and golden brown.
- Garnish your gratin with fresh herbs before serving.
Best ways to enjoy it
To elevate your dining experience, consider serving your Seafood Gratin alongside a simple arugula salad dressed with lemon vinaigrette for a refreshing contrast. Crusty bread or garlic bread also pairs beautifully, allowing everyone to soak up that luscious creamy sauce. For a wine pairing, a chilled white wine such as Chardonnay or Sauvignon Blanc complements the seafood beautifully.
Storage and reheating tips
If you find yourself with leftovers (which is unlikely because it’s so delicious!), you’ll want to store them properly. Allow the gratin to cool, then transfer it to an airtight container. It can be refrigerated for up to 3 days. Reheat in the oven at a low temperature until warmed through, ensuring the top remains crisp. If you anticipate more leftovers, consider freezing the gratin before baking. This way, you can pop it in the oven whenever a comforting meal is needed.
Pro chef tips
- For an added layer of flavor, try incorporating a splash of white wine when sautéing the mushrooms. It brings out a rich depth in the dish.
- If you like a bit of texture, top your gratin with a mixture of breadcrumbs and cheese before baking. This creates a delightful crunchy topping.
- Ensure your seafood is fresh and of high quality for the best flavor. Frozen seafood is a convenient alternative if you’re pressed for time.
Creative twists
Feel free to put your spin on this gratin! Adding vegetables like spinach or leeks can introduce different flavors and nutrients. For spice lovers, a pinch of red pepper flakes will add a lovely heat. Alternatively, replace the seafood with a medley of vegetables for a delightful vegetarian option that still keeps the creamy essence intact.

FAQ
How long does it take to prepare?
From start to finish, including prep and cooking, you can have this Seafood Gratin ready in about 45 minutes.
Can I use frozen seafood?
Absolutely! Frozen shrimp, scallops, and mussels work perfectly; just ensure to thaw them in the refrigerator overnight before using to maintain texture.
What if I have dietary restrictions?
If you’re looking to make this dish gluten-free, simply make sure your cheese and any added ingredients don’t contain gluten. Dairy-free options are valid too; try using coconut cream and a vegan cheese replacement.
Whipping up a fabulous Seafood Gratin with Cream and Cheese can be a simple yet rewarding endeavor that brings warmth and comfort to your table. Whether you’re new to cooking or a seasoned pro, this dish is sure to impress.






