Preheat your oven to 400°F (200°C) and line a 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 season with a pinch of sea salt and black pepper.
Roast the asparagus in the oven for 12-15 minutes until they are tender-crisp and slightly charred.
While the asparagus roasts, pat the salmon fillet dry with a paper towel and season both sides with garlic powder, remaining salt, and pepper.
Heat the remaining olive oil in a non-stick skillet over medium-high heat.
Place the salmon in the pan, skin-side up, and sear for 4 minutes until a golden crust forms.
Carefully flip the salmon and cook for another 3-4 minutes until the fish is opaque and flakes easily with a fork.
Plate the salmon alongside the roasted asparagus and finish with a fresh squeeze of lemon juice over everything.