Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Prep the vegetables by slicing the carrots into 1/2-inch rounds, the zucchini into half-moons, and the red bell pepper into 1-inch squares.
Mince the garlic cloves and finely chop the fresh rosemary and thyme leaves.
Place the chicken breast and the prepared vegetables onto the baking sheet in a single layer.
Drizzle the olive oil over the chicken and vegetables, then sprinkle with the minced garlic, rosemary, thyme, sea salt, and black pepper.
Toss the vegetables to coat and flip the chicken to ensure it is seasoned on both sides.
Roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender and slightly browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing to ensure maximum juiciness.