June 29, 2026 · 5 min

Walnut-Crusted Salmon with Roasted Vegetables and Lemon Crème Fraîche

Dinner5 min1970 cal / serving

There’s something irresistible about tender, flaky salmon topped with a crunchy, nutty crust. This recipe takes it to the next level by coating the fillets in tangy Dijon mustard and pressing on a mixture of chopped walnuts, panko breadcrumbs and melted butter. As it bakes, the topping turns golden and crisp while the fish stays juicy and moist.

Best of all, everything cooks together on a single sheet pan-along with seasoned potatoes, zucchini and red onion. The vegetables roast to caramelized perfection, soaking up the flavors from the pan. A quick lemon crème fraîche adds a bright, creamy finish. It’s a simple, satisfying dinner that makes weeknights feel special.


Recipe details

Dinner5 min1970 cal / serving2 servings

Nutrition per serving

Calories1970 kcalProtein41.7 gFat171.2 gCarbs70.4 gSugar18.5 gFiber6 gSodium1217 mg

Dietary labels

Gluten-free: noLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: containsMilk / dairy: containsEgg: not detectedFish: containsShellfish: not detectedPeanut: not detectedTree nuts: containsSoy: not detectedSesame: not detectedMustard: containsCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Potatoes12 ounce PotatoesView ingredient guide
Red Onion1 unit Red OnionView ingredient guide
Zucchini1 unit ZucchiniView ingredient guide
Walnuts0.5 ounce WalnutsView ingredient guide
Crème Fraîche2 tablespoon Crème FraîcheView ingredient guide
Lemon1 unit LemonView ingredient guide
Panko Breadcrumbs0.25 cup Panko BreadcrumbsView ingredient guide
Dijon Mustard2 teaspoon Dijon MustardView ingredient guide
Salmon10 ounce SalmonView ingredient guide
Butter3 tablespoon (tbsp) ButterView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Cooking Oil2 teaspoon (tsp) Cooking OilView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Preheat your oven to 425°F (220°C). Line a sheet pan with parchment paper or foil for easy cleanup.
  2. Cut the potatoes into 1/2-inch pieces. Halve and peel the red onion, then cut into 1/2-inch wedges. Trim the zucchini and cut into 1/2-inch half-moons.
  3. On the prepared sheet pan, toss the potatoes, onion and zucchini with cooking oil, steak spice, salt and pepper. Spread into an even layer. Roast for 15 minutes.
  4. Meanwhile, finely chop the walnuts. In a small bowl, combine the chopped walnuts, panko breadcrumbs and melted butter. Mix until the breadcrumbs are evenly coated.
  5. Remove the sheet pan from the oven. Push the vegetables to the sides to create space in the center. Pat the salmon dry with paper towels, then brush the tops with Dijon mustard. Press the walnut-panko mixture onto the mustard-coated tops of the salmon fillets.
  6. Place the salmon in the center of the sheet pan, crust-side up. Return the pan to the oven and roast until the salmon is cooked through and the topping is golden and crispy, about 10-12 minutes, depending on thickness.
  7. While the salmon cooks, zest and juice half the lemon. In a small bowl, stir together the crème fraîche, lemon zest and a squeeze of lemon juice. Season with salt and pepper to taste.
  8. Serve the salmon and roasted vegetables with a dollop of lemon crème fraîche on the side. Garnish with additional lemon wedges if desired.

Recipe Tips

For extra crispy vegetables, make sure they are spread in a single layer without overcrowding.

If your salmon fillets are thicker, you may need to add a few extra minutes of roasting time.

The lemon crème fraîche can be made ahead and refrigerated until ready to serve.

FAQ

Can I use a different type of fish?

Yes, this recipe works well with other firm fish fillets like cod or halibut. Adjust cooking time as needed.

What can I substitute for crème fraîche?

You can use sour cream or Greek yogurt mixed with a little lemon juice as a substitute.

Can I make this recipe nut-free?

To make it nut-free, omit the walnuts and use extra panko breadcrumbs or crushed pretzels for crunch.

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