Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Trim the woody ends off the asparagus and toss the spears on the baking sheet with 0.75 tsp of olive oil, a pinch of sea salt, and black pepper.
Roast the asparagus for 10-12 minutes until tender and slightly browned at the tips.
While the asparagus roasts, pat the salmon fillet completely dry with a paper towel and season both sides with the remaining sea salt, black pepper, and garlic powder.
Heat the remaining 0.75 tsp of olive oil in a medium non-stick skillet over medium-high heat until shimmering.
Place the salmon in the pan, skin-side up, and sear for 4-5 minutes without moving it to develop a deep golden crust.
Carefully flip the fillet and cook for an additional 3-4 minutes until the salmon is just cooked through and flakes easily with a fork.
Plate the salmon alongside the roasted asparagus and finish with a generous squeeze of fresh lemon juice over everything.