There’s something comforting about a rich, cheesy dish that warms not just the belly, but the heart. My journey to discovering this Salmon Gratin happened on a rainy afternoon when I found myself staring into the fridge, pondering how to elevate our usual dinner routine. With a couple of salmon fillets, some broccoli, and a few other ingredients on hand, I felt inspired to create a meal that would impress and satisfy.
This dish combines flaky salmon, vibrant broccoli, and earthy mushrooms all enveloped in a creamy white sauce, topped with gooey cheese that melts beautifully. It not only looks elegant but tastes divine, making it perfect for a cozy family dinner or when entertaining guests! In just 30 minutes, you can whip up this delightful gratin that’s both healthy and indulgent, escaping the cycle of fast food cravings. Let’s dive in and make this Salmon Gratin a new favorite in your kitchen!
Why will you love Salmon Gratin?
Comforting warmth: This dish offers a delightful blend of textures and flavors that create a cozy atmosphere at any dinner table.
Healthy ingredients: Packed with nutrient-rich salmon and vibrant broccoli, it provides both taste and nutrition.
Quick preparation: In just 30 minutes, you can serve up gourmet goodness without the fuss.
Cheesy goodness: The gooey, melted cheese on top adds a rich layer that is simply irresistible.
Impressive presentation: Perfect for impressing guests, this gratin looks as good as it tastes—a true crowd-pleaser!
If you’re intrigued by simple yet elegant dishes, check out our Baked Herb Salmon for more culinary inspiration!
Salmon Gratin Ingredients
For the Gratin
- Salmon fillets – 6-8 oz each; flaky and flavorful, this is the star of your Salmon Gratin!
- Broccoli florets – 2 cups; adds vibrant color and a nutritious crunch to the dish.
- Crimini mushrooms – 4 oz; their earthy flavor complements the salmon beautifully.
- Small onion – 1; sweetens the creamy sauce and adds depth of flavor.
- Milk – 400 ml; ensures a rich and creamy texture for the sauce.
- Butter – 3 tablespoons; for sautéing the onions and creating a luscious base.
- All-purpose flour – 6 tablespoons; helps thicken your white sauce to perfection.
- Salt – to taste; enhances all the flavors in the dish.
- Mozzarella or white cheese blend – for topping; choose your favorite to create that irresistible cheesy finish.
Preparation is key for this Salmon Gratin, so gather your ingredients and get ready to indulge in a delightful homemade meal!
How to Make Salmon Gratin
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Combine the thinly sliced onion and flour in a mixing bowl. This simple step will form the foundation of your creamy white sauce, enhancing its flavor as it cooks.
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Heat a skillet over low heat and add the butter. Allow the butter to melt slowly for a rich, nutty flavor that creates the base of your delicious sauce.
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Sauté the onion and flour mixture until the onions are no longer powdery and white, approximately 3-4 minutes. You’ll know they’re ready when they become translucent and fragrant.
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Gradually add the milk a little bit at a time, stirring well after each addition. This method prevents lumps and helps you achieve a smooth and velvety sauce.
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Stir continuously until the mixture thickens, around 5-7 minutes. Add salt to taste, ensuring each bite is full of flavor.
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Preheat your oven to 350°F (175°C). This step is essential for achieving that perfect, bubbly finish on your gratin.
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Prepare the broccoli by cutting florets into bite-sized pieces. You can boil, microwave, or steam them with a pinch of salt until they’re tender but still vibrant in color, about 3-5 minutes.
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Cut the salmon fillets into bite-sized pieces and sprinkle with salt. This seasoning will bring out the salmon’s natural flavor and complement the sauce beautifully.
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Slice the mushrooms into quarters, halves, or sixths, depending on their size. These earthy bites will add delightful texture to your gratin.
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Brown the salmon pieces in a preheated nonstick pan over medium heat, around 4-5 minutes. This step will create a lovely crust and lock in flavor.
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Remove the salmon and sauté the salted mushrooms until golden, approximately 5 minutes. Their rich aroma will fill your kitchen and make your mouth water!
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Combine the broccoli, mushrooms, and salmon in individual gratin dishes or one casserole dish. This colorful mix makes for a beautiful presentation.
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Pour the creamy white sauce over the top and stir gently, ensuring the pieces are evenly coated and some are still peeking through for that rustic look.
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Sprinkle cheese generously over the top and bake in the oven until melted and bubbly, about 15-20 minutes, creating a beautiful golden crust.
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Broil the gratin for a few minutes if desired, to achieve a deliciously browned top. Keep a close eye, as it can go from golden to burnt quickly!
Optional: Add fresh herbs like parsley or dill for a bright finish.
Exact quantities are listed in the recipe card below.
Make Ahead Options
These Salmon Gratin delights are perfect for meal prep enthusiasts looking to save time during busy weeknights! You can prepare the creamy white sauce and chop all the vegetables (broccoli, mushrooms, and onion) up to 24 hours in advance, storing them separately in the refrigerator to maintain quality. For even more convenience, you can cut the salmon into bite-sized pieces and season them ahead of time. When you’re ready to indulge, simply combine all components, pour the sauce over, sprinkle with cheese, and bake as directed. In just a matter of minutes, you’ll be serving up a comforting, homemade meal that feels just as fresh and delicious as if you made it on the spot!
Salmon Gratin Variations
Feel free to customize your Salmon Gratin for a delightful twist that caters to your preference!
- Dairy-Free: Substitute milk with almond or oat milk and use dairy-free cheese for a creamy, plant-based option.
- Gluten-Free: Replace all-purpose flour with a gluten-free flour blend and ensure your cheese is gluten-free for a safe, delicious dish.
- Spicy Kick: Add a pinch of red pepper flakes or cayenne pepper to the white sauce for a warm, zesty flavor that’ll wake up your taste buds!
- Veggie Boost: Throw in spinach or kale along with the broccoli for a pop of color and added nutrients, creating a hearty and healthful layer.
- Cheese Variety: Experiment with different cheeses like Gruyère or cheddar for a richer flavor profile that can elevate the dish to new heights.
- Seafood Mix: Mix in some cooked shrimp or crab alongside the salmon to add an oceanic twist that’s both luxurious and fulfilling.
- Herb Infusion: Enhance the white sauce with fresh dill or parsley to brighten the flavors and add a fragrant touch that complements the salmon perfectly.
- Noodle Layer: For a comforting twist, layer some cooked pasta like penne or fusilli in the gratin, creating a heartier, pasta-infused version.
The possibilities are endless, so let your culinary creativity shine and make this Salmon Gratin your very own!
How to Store and Freeze Salmon Gratin
Fridge: Store leftover Salmon Gratin in an airtight container for up to 3 days; simply reheat for a quick and satisfying meal.
Freezer: For longer storage, freeze portions in airtight containers for up to 2 months; thaw overnight in the fridge before reheating.
Reheating: Reheat gently in the oven at 350°F (175°C) until warmed through, about 15-20 minutes, to maintain the texture and flavor of the gratin.
Serving: Garnish with fresh herbs before serving to brighten up the dish and enhance the flavors of your delicious Salmon Gratin.
Expert Tips for Salmon Gratin
- Prep Ingredients: Organizing your ingredients before cooking ensures a smooth process, preventing any last-minute scrambles that can lead to mistakes in your Salmon Gratin preparation.
- Sauce Consistency: Stir the milk in gradually and keep stirring until thick; lumps can ruin the creamy texture of your sauce.
- Broccoli Blanching: Avoid overcooking the broccoli; it should be bright green and still slightly crisp for the best flavor and texture.
- Salmon Cooking: Don’t overcrowd the pan when browning the salmon; too many pieces at once can lead to steaming instead of browning.
- Cheese Choices: Feel free to mix cheeses for flavor. A combination of mozzarella and Parmesan adds depth and enhances the overall cheesy goodness of your gratin.
What to Serve with Salmon Gratin?
Complement your Salmon Gratin with delightful side dishes that elevate your meal to new levels of comfort and flavor.
- Creamy Mashed Potatoes: Their buttery texture balances the richness of the gratin, making for a hearty and indulgent combination.
- Garlic Green Beans: These tender, vibrant beans add a fresh crunch, brightening the dish with their aromatic garlic flavor.
- Citrus Salad: A refreshing mix of greens and citrus dressing cuts through the creaminess, providing a zesty contrast everyone will love.
- Rice Pilaf: Fluffy rice with herbs complements the dish perfectly, soaking up the delicious sauce without overwhelming it.
- Wine Pairing: A chilled glass of Sauvignon Blanc enhances the flavors of salmon, bringing a crisp, refreshing touch to your dinner.
- Lemon Tart for Dessert: Follow the gratin with a tangy lemon tart, providing a light and refreshing end to your meal that’ll leave everyone satisfied.
- Herbed Quinoa: This protein-packed grain adds a wholesome touch, with light herbs that tie back to the freshness of the broccoli.
- Roasted Asparagus: The earthy flavors of roasted asparagus enhance the overall experience, adding a slight char that’s irresistibly flavorful.
- Homemade Garlic Bread: Crunchy and warm, it’s perfect for scooping up the creamy sauce and preventing any delicious morsels from going to waste.
- Sparkling Water with Lime: For a refreshing drink, the fizz and zest of lime will cleanse the palate after each rich bite of the gratin.
Salmon Gratin Recipe FAQs
How do I choose the right salmon fillets?
Absolutely! Look for salmon that has a vibrant pink color and moist flesh. Avoid any that have dark spots or an overly fishy smell. Fresh, wild-caught salmon often provides the best flavor and texture.
How long can I store leftover Salmon Gratin?
Very! You can store leftover Salmon Gratin in an airtight container in the fridge for up to 3 days. Just be sure to let it cool completely before sealing it up. When you’re ready to enjoy it again, a quick reheat in the oven restores the deliciousness!
Can Salmon Gratin be frozen?
Of course! To freeze, portion the gratin into airtight containers and label them with the date. It can be stored in the freezer for up to 2 months. Thaw overnight in the fridge before reheating in the oven at 350°F for about 15-20 minutes, or until warmed through.
What to do if my white sauce is lumpy?
No worries! If your white sauce turns out lumpy, simply use a whisk to vigorously stir it until it smooths out. If the lumps are stubborn, blending the sauce in a blender can regain its creamy consistency. Remember to add the milk gradually and stir constantly next time!
Is this Salmon Gratin pet-friendly?
Definitely! While the ingredients used in Salmon Gratin are safe for dogs, be cautious with salt and cheese quantities. Cats and dogs do have different dietary needs, so it’s always best to stick to their regular food unless you’re serving them a small piece of plain, cooked salmon as a treat.
What should I do if my gratin isn’t browning in the oven?
If your gratin is taking a while to brown, simply turn on the broiler for a minute or two at the end of baking. Keep a very close eye on it, as it can quickly transition from beautifully golden to burnt! For the best result, ensure the cheese is evenly spread before broiling.
Delicious Salmon Gratin with Cheesy Broccoli Goodness
Ingredients
Equipment
Method
- Combine the thinly sliced onion and flour in a mixing bowl.
- Heat a skillet over low heat and add the butter.
- Sauté the onion and flour mixture until the onions are no longer powdery and white, approximately 3-4 minutes.
- Gradually add the milk a little bit at a time, stirring well after each addition.
- Stir continuously until the mixture thickens, around 5-7 minutes.
- Preheat your oven to 350°F (175°C).
- Prepare the broccoli by cutting florets into bite-sized pieces; cook until tender but vibrant, about 3-5 minutes.
- Cut the salmon fillets into bite-sized pieces and sprinkle with salt.
- Slice the mushrooms into quarters, halves, or sixths.
- Brown the salmon pieces in a preheated nonstick pan over medium heat, around 4-5 minutes.
- Remove the salmon and sauté the salted mushrooms until golden, approximately 5 minutes.
- Combine the broccoli, mushrooms, and salmon in individual gratin dishes or one casserole dish.
- Pour the creamy white sauce over the top and stir gently, ensuring even coating.
- Sprinkle cheese generously over the top and bake in the oven until melted and bubbly, about 15-20 minutes.
- Broil the gratin for a few minutes if desired, to achieve a deliciously browned top.