Baked Salmon with Cheese (Easy 20-Minute Recipe)

You will love this super easy and quick baked cheesy salmon recipe. This is something that my grandmother used to make and we loved it! You can prepare this in 15-20 min. Salmon is a healthy fish thanks to its high protein content, omega-3s and Vitamin D. The fillets are baked in the oven under a melted, golden cheese crust, with a layer of mayonnaise and sliced onions.

Stunning presentation, comforting flavors – this is a very popular main course in the Russian community. Trust me, your guests will love it. So wait no more and try this easy fish recipe at home, and enjoy it with your loved ones. It forms this amazingly crisp but still creamy crust.

Why you'll love this cheesy baked salmon

• Ready in 20 minutes – perfect for busy weeknights.
• Golden, bubbling cheese crust over juicy, flaky salmon.
• Simple ingredients you already have in the fridge.
• A family favourite from my grandmother's kitchen.

Ingredients (serves 2)

• 2 salmon fillets (220g / about 8 oz in total)
• 3-4 tbsp mayonnaise
• 1 tsp mustard
• 1/2 onion
• 1 garlic clove
• Juice of half a lemon
• Salt and pepper
• 1/2 tsp sugar
• 50g (½ cup grated) hard cheese

Directions

Step 1. Preheat the oven to 200°C/400°F. Place the salmon skin side down onto a baking tray lined with parchment paper. Season with salt and set aside for a minute.

Step 2. In a bowl, add the mayonnaise, mustard, sugar and lemon juice. Then add the minced garlic and chopped onion. I slice the onion and then halve the slices again. If you don't like onion rings, you can chop them even smaller. Squeeze the onions in your hand a little bit and then add them to the bowl.

Step 3. Season well with salt and pepper, then top each salmon fillet with a generous amount. Add the shredded cheese on top and bake for 15 min. If you want the cheese to get a golden, crispy colour, turn the oven to max (or the grill) for the last 1-2 min.

Step 4. Enjoy with salad, rice, pasta or potatoes.

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Alla's tips

• Pat the salmon dry before seasoning so the topping sticks.
• Squeeze the onions slightly to soften them and take away the sharpness.
• Use a good melting cheese like Gouda, Cheddar or Gruyère for the best golden crust.
• Don't overbake. Salmon is done when it flakes easily and is just opaque in the middle (145°F / 63°C).
• Grill for the last 1–2 minutes for a crispy, bubbling cheese top.

Storage

Keep leftovers covered in the fridge for up to 2 days. Reheat gently in the oven at 300°F (150°C) for 10 minutes so the salmon doesn't dry out.

Frequently asked questions

Can I use frozen salmon?
Yes. Thaw it overnight in the fridge and pat it dry before adding the topping.

Can I use Greek yogurt instead of mayonnaise?
Yes, for a lighter version. The crust will be a little less rich but still delicious.

How do I know when the salmon is cooked?
It flakes easily with a fork and is opaque in the middle. A thermometer should read 145°F (63°C).

What can I serve with cheesy baked salmon?
It's lovely with boiled potatoes and dill, rice, pasta or a fresh green salad.

Can I make it with other fish?
Yes – cod, haddock or trout all work. Adjust the baking time to the thickness of the fillets.

More quick salmon recipes

• 15 Min Creamy Lemon Salmon
• 15 Min Baked Pesto Salmon
• Layered Salmon & Rice Salad
• Salmon Poke Rice Bowl

Hugs, Alla xox

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