Preheat your oven to 400°F (200°C) and line a rimmed baking sheet with parchment paper for easy cleanup.
Pat the chicken breast completely dry with paper towels to ensure the skin becomes perfectly crispy during roasting.
In a small bowl, whisk together the olive oil, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Brush the herb and oil mixture generously over both sides of the chicken breast until evenly coated.
Place the seasoned chicken on the prepared baking sheet and arrange the asparagus spears in a single layer around it.
Squeeze the juice from the lemon half over the chicken and asparagus, then place the spent lemon wedge on the tray for extra aroma.
Roast in the center of the oven for 20 to 25 minutes or until the chicken reaches an internal temperature of 165°F.
Remove from the oven and let the chicken rest for 5 minutes before slicing to allow the juices to redistribute.