Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Trim the woody ends off the asparagus spears and place them on the prepared baking sheet.
Drizzle the asparagus with half of the olive oil and toss with the minced garlic, sea salt, and black pepper.
Roast the asparagus in the oven for 12 to 15 minutes until they are tender and slightly charred at the tips.
While the vegetables roast, pat the salmon fillet completely dry with a paper towel and season both sides with the remaining salt, pepper, and dried dill.
Heat the remaining olive oil in a stainless steel or cast-iron skillet over medium-high heat until the oil is shimmering.
Carefully place the salmon in the pan skin-side up and sear for 4 to 5 minutes without moving it, until a deep golden crust forms.
Flip the salmon fillet and cook for an additional 3 to 4 minutes until the fish is opaque and flakes easily with a fork.
Plate the salmon immediately alongside the roasted asparagus and finish the dish with a generous squeeze of fresh lemon juice.