Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Finely mince the garlic cloves and strip the fresh rosemary and thyme from their stems, chopping the leaves finely.
Peel the carrots and slice them into thin rounds, ensuring they are a similar size to the broccoli florets for even cooking.
In a large mixing bowl, combine the chicken breast, broccoli florets, and sliced carrots.
Drizzle the olive oil over the mixture and add the minced garlic, chopped herbs, sea salt, and black pepper.
Toss everything together with your hands or tongs until the chicken and vegetables are thoroughly and evenly coated.
Spread the ingredients onto the prepared baking sheet in a single layer, making sure the chicken pieces are not covered by vegetables.
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.
Remove from the oven and let the chicken rest for 5 minutes before slicing to ensure the meat stays succulent and flavorful.