Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper for easy cleanup.
Slice the chicken breast into even 1-inch thick cutlets and chop the carrots and bell pepper into bite-sized pieces.
Place the chicken, broccoli florets, carrots, and bell pepper onto the prepared baking sheet in a single layer.
In a small bowl, whisk together the extra virgin olive oil, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Drizzle the herb oil over the chicken and vegetables, using your hands or tongs to toss everything until thoroughly and evenly coated.
Roast in the center of the oven for 20 to 22 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender-crisp and slightly browned.
Remove from the oven and let the chicken rest for 5 minutes to lock in the juices before serving.