Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper for easy cleanup.
Pat the chicken breasts dry with a paper towel to ensure a good sear and place them on one side of the prepared baking sheet.
Trim the tough, woody ends off the asparagus spears and arrange them in a single layer on the other side of the pan.
In a small glass bowl, whisk together the olive oil, lemon juice, lemon zest, minced garlic, rosemary, thyme, salt, and pepper.
Drizzle the herb and lemon mixture over both the chicken and the asparagus, using a brush or your hands to ensure every piece is well-coated.
Place the pan in the center of the oven and roast 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 keep the juices locked in.
Plate the sliced chicken alongside the roasted asparagus and garnish with extra lemon wedges if desired.