Preheat your oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Halve the baby potatoes and trim the woody ends off the asparagus spears.
Pat the chicken breast completely dry with a paper towel to ensure the skin gets extra crispy.
In a small bowl, combine half the olive oil with the minced rosemary, thyme, sea salt, and black pepper.
Rub the herb oil mixture all over the chicken breast and place it on one side of the sheet pan.
Toss the potatoes, asparagus, and minced garlic with the remaining olive oil and a pinch of salt, then spread them in a single layer on the other side of the pan.
Place thin slices of lemon over the chicken and vegetables for a bright, citrusy infusion.
Roast for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F and the potatoes are golden and tender.
Let the chicken rest for 5 minutes before slicing to keep it juicy and flavorful.