Preheat oven to 400°F (200°C) and line a large sheet pan with parchment paper.
Toss the asparagus on the sheet pan with 1 tbsp olive oil, half the garlic, ½ tsp salt, and a pinch of pepper. Push to one side of the pan.
Pat the salmon fillets dry and place on the other side of the pan. Whisk together the remaining olive oil, garlic, lemon juice, dill, remaining salt, and pepper, then brush over the salmon. Top each fillet with a lemon slice.
Roast for 12-15 minutes, until the salmon flakes easily with a fork and the asparagus is crisp-tender.
Sprinkle with red pepper flakes if using and serve immediately.
Kept Recipes turns anything — a screenshot, a webpage, a craving — into a clean cookbook page like this one. No ads, no accounts, yours to keep.
Get the app