Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper for easy cleanup.
Wash and halve the baby potatoes, and trim the tough, woody ends off the asparagus spears.
In a small mixing bowl, whisk together the extra virgin olive oil, minced garlic, finely chopped rosemary, and thyme.
Place the chicken breast, halved potatoes, and asparagus on the prepared sheet pan in a single layer.
Drizzle the herb-oil mixture over the chicken and vegetables, then season everything evenly with sea salt and black pepper.
Squeeze the juice from the lemon half over the tray and nestle the remaining lemon rind among the vegetables for extra fragrance.
Roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the potatoes are tender and lightly browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy and flavorful.