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, then place them on one side of the baking sheet.
Place the chicken breast in the center of the pan and pat it dry with a paper towel.
In a small bowl, whisk together the olive oil, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Drizzle half of the herb oil mixture over the chicken and potatoes, tossing the potatoes to coat evenly.
Roast in the oven for 15 minutes.
While the chicken is roasting, trim the woody ends off the asparagus spears.
Remove the pan from the oven, add the asparagus to the empty space, and drizzle with the remaining herb oil.
Return the pan to the oven and roast for another 10 to 12 minutes until the chicken reaches an internal temperature of 165°F.
Squeeze the fresh lemon juice over the entire tray before serving to brighten all the flavors.