Preheat your oven to 400°F (200°C) and line a small baking sheet with parchment paper.
Trim the woody ends off the asparagus and place the spears on the baking sheet.
Drizzle the asparagus with half of the olive oil and season with a pinch of the sea salt and black pepper.
Roast the asparagus for 10-12 minutes until they are tender and slightly charred at the tips.
While the asparagus roasts, pat the salmon fillet dry with a paper towel and season both sides with garlic powder and the remaining salt and pepper.
Heat the remaining olive oil in a non-stick skillet over medium-high heat until shimmering.
Place the salmon in the pan, skin-side up, and sear for 4 minutes without moving it to develop a golden-brown crust.
Carefully flip the fillet and cook for another 3-4 minutes until the salmon is cooked through and flakes easily with a fork.
Plate the salmon alongside the roasted asparagus and finish with a fresh squeeze of lemon juice over the entire dish.