Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Mince the garlic cloves and finely chop the fresh rosemary and thyme leaves.
In a large mixing bowl, combine the chicken breast, broccoli florets, and sliced carrots.
Drizzle the olive oil over the chicken and vegetables, then add the minced garlic, rosemary, thyme, sea salt, and black pepper.
Toss everything thoroughly until the chicken and produce are evenly coated in the oil and aromatics.
Spread the mixture in a single layer on the prepared baking sheet, ensuring the chicken pieces are not crowded.
Roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender and lightly browned.
Remove from the oven and let the chicken rest for 5 minutes before serving to ensure it remains moist and flavorful.