Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Halve the baby potatoes and trim the woody ends off the asparagus spears.
In a small mixing bowl, whisk together the olive oil, minced garlic, lemon juice, lemon zest, chopped rosemary, and thyme.
Place the chicken breast, halved potatoes, and asparagus on the prepared baking sheet.
Drizzle the herb and lemon oil mixture over the chicken and vegetables, tossing the produce to ensure an even coating.
Season everything uniformly with sea salt and black pepper.
Roast in the center of the oven for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the potatoes are golden and fork-tender.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy.
Plate the sliced chicken alongside the roasted vegetables and drizzle with any remaining pan juices.