Preheat your oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Cut the chicken breast into even 1-inch bite-sized pieces to ensure they cook quickly and stay juicy.
In a large mixing bowl, combine the chicken pieces, broccoli florets, sliced bell peppers, and sliced zucchini.
Drizzle the extra virgin olive oil over the mixture, then add the minced garlic, chopped rosemary, thyme, sea salt, and black pepper.
Toss everything thoroughly until the chicken and vegetables are evenly coated with the oil and aromatics.
Spread the mixture in a single layer on the prepared sheet pan, ensuring nothing is overcrowded so the vegetables roast rather than steam.
Roast for 20 to 25 minutes, or until the chicken is cooked through and the vegetables are tender and slightly caramelized.
Remove from the oven and let the dish rest for 2 minutes before serving to allow the juices to redistribute.