Preheat your oven to 400°F (200°C).
Pat the chicken breast dry with a paper towel to ensure a good sear.
In a small bowl, combine the dried oregano, garlic powder, sea salt, and black pepper.
Season both sides of the chicken breast evenly with the herb mixture.
Trim the woody ends off the asparagus and place them on a small baking sheet, lightly coating them with a tiny drop of olive oil and a pinch of salt.
Heat an oven-safe skillet over medium-high heat and add the remaining olive oil.
Sear the chicken for 3-4 minutes on one side until a golden-brown crust forms.
Flip the chicken, then place the skillet and the tray of asparagus into the oven.
Roast for 10-12 minutes, or until the chicken reaches an internal temperature of 165°F and the asparagus is tender.
Remove from the oven and immediately drizzle the fresh lemon juice over the chicken and asparagus before serving.