Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Trim the woody ends off the asparagus and place the spears on the baking sheet, tossing them with 1 teaspoon of olive oil, half the sea salt, and half the black pepper.
Roast the asparagus 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 and pepper.
Heat the remaining teaspoon of olive oil in a heavy skillet over medium-high heat until the oil begins to shimmer.
Carefully place the salmon in the pan skin-side down, pressing gently with a spatula for 10 seconds to ensure even contact for a perfectly crispy skin.
Sear the salmon undisturbed for 4 to 5 minutes, then flip and cook for another 2 to 3 minutes until the flesh is opaque and flakes easily.
Mince the garlic and add it to the pan during the last minute of cooking, tossing it in the residual oil to soften without burning.
Plate the salmon alongside the roasted asparagus and finish with a bright, zesty squeeze of fresh lemon juice.