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 dry with a paper towel and slice it into 1-inch thick strips or bite-sized pieces.
In a large mixing bowl, whisk together the olive oil, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Add the chicken pieces, broccoli florets, sliced carrots, and sliced zucchini to the bowl, tossing thoroughly until every piece is evenly coated in the herb oil.
Spread the chicken and vegetable mixture in a single layer onto the prepared baking sheet, ensuring they are not overcrowded to allow for proper roasting.
Roast in the center of the oven for 18 to 22 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are lightly browned.
Remove from the oven and let the chicken rest for 3 minutes to lock in the juices before serving.