Roast Salmon With Leeks Onions (Printable)

Roasted salmon with leeks, onions, and vibrant parsley dressing. Gluten-free and ready in 40 minutes.

# What Goes In:

→ Fish & Vegetables

01 - 4 salmon fillets (about 5.3 oz each), skin-on
02 - 2 large leeks, trimmed and sliced into 1/2-inch rounds
03 - 1 large red onion, sliced into wedges
04 - 2 tbsp olive oil
05 - 1/2 tsp sea salt
06 - 1/4 tsp black pepper
07 - 1 lemon, sliced

→ Parsley Dressing

08 - 1 cup fresh flat-leaf parsley, finely chopped
09 - 1 small garlic clove, minced
10 - 1/2 tsp Dijon mustard
11 - 1 tsp capers, drained and chopped
12 - 1/2 tsp lemon zest
13 - 3 tbsp extra-virgin olive oil
14 - 1 tbsp fresh lemon juice
15 - Salt and pepper, to taste

# How to Make It:

01 - Set oven to 400°F (200°C).
02 - Arrange leeks and red onion in a single layer on a large baking sheet. Drizzle with olive oil, sprinkle with salt and pepper, and toss to coat evenly.
03 - Roast the vegetables for 10 minutes until slightly softened.
04 - Remove the baking sheet from the oven. Nestle the salmon fillets skin-side down among the vegetables. Arrange lemon slices over the salmon.
05 - Return to the oven and roast for 12–15 minutes, or until the salmon is just cooked through and vegetables are tender.
06 - While the salmon bakes, combine parsley, garlic, Dijon mustard, capers, lemon zest, olive oil, and lemon juice in a small bowl. Stir well and season with salt and pepper to taste.
07 - Transfer the roasted salmon and vegetables to plates. Spoon the parsley dressing generously over the salmon. Serve immediately.

# Expert Advice:

01 -
  • Everything roasts together on one sheet, so cleanup is as easy as sliding parchment into the bin.
  • The parsley dressing adds a punch of brightness that makes even weeknight dinners feel special.
  • Its naturally gluten-free and dairy-free without tasting like anything is missing.
  • The vegetables caramelize beautifully and soak up all the savory juices from the salmon.
02 -
  • Dont skip the 10-minute head start for the vegetables—they need extra time to soften and caramelize properly.
  • Check the salmon at 12 minutes; overcooked salmon turns dry and chalky, so pull it when it just flakes at the thickest part.
  • Make the dressing while the pan is in the oven so everything finishes at the same time and you can serve hot.
03 -
  • Line your baking sheet with parchment paper for truly effortless cleanup and to prevent sticking.
  • Let the salmon rest for two minutes after pulling it from the oven—it finishes cooking gently and stays juicier.
  • Zest your lemon before you slice it so you dont waste any of that fragrant peel.
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