Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Trim the tough, woody ends off the asparagus and place the spears on the prepared baking sheet.
Drizzle the asparagus with 0.5 tablespoons of olive oil and a pinch of sea salt, tossing to coat evenly.
Roast the asparagus in the oven for 12 to 15 minutes until tender and slightly charred at the tips.
While the vegetables roast, pat the chicken breast dry with a paper towel and season both sides with garlic powder, sea salt, and black pepper.
Heat the remaining 1 tablespoon of olive oil in a large skillet over medium-high heat until shimmering.
Add the chicken to the skillet and sear for 6 to 8 minutes per side, or until the internal temperature reaches 165°F and the crust is beautifully browned.
Remove the chicken from the heat and let it rest for 3 minutes to lock in the juices before slicing.
Plate the chicken alongside the roasted asparagus and finish with a bright drizzle of fresh lemon juice.