Have you ever wondered how a simple seafood dish can transform into a gourmet experience? The answer lies in the Baked Seafood Gratin Recipe. This dish not only tantalizes your taste buds but also impresses your guests with its creamy texture and rich flavors. Did you know that seafood is one of the healthiest protein sources, packed with omega-3 fatty acids and essential nutrients? In this blog post, we’ll explore how to make an irresistible seafood gratin that is perfect for any occasion.
Ingredients List
To create a delicious seafood gratin, you’ll need the following ingredients:
- Seafood Mix: 1 pound (shrimp, scallops, and crab are ideal)
- Butter: 4 tablespoons
- Garlic: 3 cloves, minced
- Onion: 1 medium, finely chopped
- Heavy Cream: 1 cup
- Milk: 1/2 cup
- Grated Cheese: 1 cup (Gruyère or a blend of your choice)
- Breadcrumbs: 1/2 cup (for a crispy topping)
- Parsley: 2 tablespoons, chopped
- Lemon Juice: 1 tablespoon
- Salt and Pepper: to taste
Substitutions:
- For a lighter version, use half-and-half instead of heavy cream.
- If you’re lactose intolerant, substitute with almond or coconut milk and dairy-free cheese.
Step-by-Step Instructions
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C). This ensures your gratin will bake evenly and develop a golden crust.
Step 2: Sauté the Aromatics
In a large skillet, melt the butter over medium heat. Add the chopped onion and minced garlic, sautéing until fragrant and translucent, about 3-4 minutes. This step builds a flavorful base for your gratin.
Step 3: Add the Seafood
Stir in the seafood mix and cook for an additional 5 minutes until the seafood is just cooked through. Remove from heat and let it cool slightly.
Step 4: Prepare the Cream Mixture
In a separate bowl, whisk together the heavy cream, milk, lemon juice, salt, and pepper. This creamy mixture will bind all the ingredients together and add richness to your dish.
Step 5: Combine Ingredients
In a large mixing bowl, combine the sautéed seafood, cream mixture, and half of the grated cheese. Stir well to ensure everything is evenly coated.
Step 6: Transfer to Baking Dish
Pour the mixture into a greased baking dish. Spread it out evenly, then sprinkle the remaining cheese and breadcrumbs on top for that delightful crunch.
Step 7: Bake
Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and bubbly. The aroma will fill your kitchen, enticing everyone nearby.
Step 8: Garnish and Serve
Once out of the oven, let it cool for a few minutes. Garnish with freshly chopped parsley before serving to add a pop of color and freshness.

Nutritional Information
Here’s a quick overview of the nutritional benefits of this Baked Seafood Gratin Recipe:
Nutrient | Amount per Serving |
---|---|
Calories | 350 |
Protein | 25g |
Total Fat | 20g |
Saturated Fat | 10g |
Carbohydrates | 15g |
Dietary Fiber | 1g |
Sugars | 2g |
Seafood is a fantastic source of protein and essential nutrients, making this dish not only delicious but also nutritious.
Healthier Alternatives for the Recipe
If you’re looking to make your seafood gratin even healthier, consider these modifications:
- Swap Heavy Cream: Use Greek yogurt or low-fat sour cream instead of heavy cream to reduce calories and fat.
- Increase Vegetables: Add spinach or kale to boost fiber and vitamins.
- Use Whole Wheat Breadcrumbs: For a healthier topping, opt for whole wheat or gluten-free breadcrumbs.
Serving Suggestions
To elevate your seafood gratin experience, consider these serving suggestions:
- Pair with a Side Salad: A light green salad with a citrus vinaigrette complements the richness of the gratin beautifully.
- Serve with Crusty Bread: Freshly baked baguette slices are perfect for soaking up the creamy sauce.
- Wine Pairing: A crisp white wine, such as Sauvignon Blanc, enhances the flavors of the seafood.
Common Mistakes to Avoid
Here are some common pitfalls and how to avoid them:
- Overcooking Seafood: Cook seafood just until opaque; it will continue to cook in the oven.
- Skipping the Cooling Step: Letting the seafood cool slightly before mixing helps prevent a watery gratin.
- Not Greasing the Dish: Always grease your baking dish to prevent sticking and ensure easy serving.
Storing Tips for the Recipe
To keep your seafood gratin fresh, follow these storage tips:
- Refrigeration: Store leftovers in an airtight container in the fridge for up to 3 days.
- Freezing: You can freeze the unbaked gratin for up to 2 months. Thaw in the fridge overnight before baking.
- Reheating: Reheat in the oven at 350°F (175°C) until warmed through for the best texture.
Conclusion
In summary, this Baked Seafood Gratin Recipe combines rich flavors and wholesome ingredients, making it a perfect dish for any occasion. Don’t hesitate to try it out and impress your family and friends! We invite you to share your feedback in the comments section below or subscribe for more delicious recipes and cooking tips.
FAQs
What types of seafood can I use?
You can use any combination of seafood, such as shrimp, scallops, crab, or even fish like cod or haddock.
Can I make this recipe ahead of time?
Yes! You can prepare the gratin a day in advance and bake it just before serving.
Is this dish suitable for freezing?
Absolutely! Just freeze it before baking, and it will keep well for up to two months.

Baked Seafood Gratin Recipe
Ingredients
- Seafood Mix: 1 pound (shrimp, scallops, and crab)
- Butter: 4 tablespoons
- Garlic: 3 cloves, minced
- Onion: 1 medium, finely chopped
- Heavy Cream: 1 cup
- Milk: 1/2 cup
- Grated Cheese: 1 cup (Gruyère or a blend)
- Breadcrumbs: 1/2 cup
- Parsley: 2 tablespoons, chopped
- Lemon Juice: 1 tablespoon
- Salt and Pepper: to taste
Instructions
- Preheat the Oven: Preheat to 375°F (190°C).
- Sauté Aromatics: Melt butter in a skillet, add onion and garlic, and sauté until translucent (3-4 minutes).
- Add Seafood: Stir in seafood mix and cook for 5 minutes. Remove from heat.
- Prepare Cream Mixture: In a bowl, whisk together heavy cream, milk, lemon juice, salt, and pepper.
- Combine Ingredients: Mix sautéed seafood with cream mixture and half of the cheese.
- Transfer to Baking Dish: Pour into a greased baking dish, top with remaining cheese and breadcrumbs.
- Bake: Bake for 25-30 minutes until golden brown and bubbly.
- Garnish and Serve: Cool slightly, garnish with parsley, and serve.
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