Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper for easy cleanup.
Pat the chicken breast completely dry with a paper towel to ensure the skin or surface achieves a golden, crispy texture.
In a small mixing bowl, whisk together the extra virgin olive oil, fresh lemon juice, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Trim the woody ends off the asparagus and slice the red bell pepper into thin strips, then place them on one side of the baking sheet.
Place the chicken breast on the other side of the sheet and drizzle the prepared herb-lemon oil over both the chicken and the vegetables.
Toss the vegetables with your hands or tongs to coat evenly and flip the chicken to ensure it is fully seasoned on all sides.
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 vegetables are tender with lightly charred edges.
Remove from the oven and let the chicken rest for 5 minutes before slicing to allow the juices to redistribute for maximum flavor.