Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Pat the chicken breast dry with a paper towel and cut it into 1-inch bite-sized pieces.
Slice the carrot into thin rounds and chop the zucchini and broccoli into uniform 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 and vegetables to the bowl and toss thoroughly until every piece is evenly coated in the herb oil.
Spread the mixture in a single layer on the prepared baking sheet, ensuring nothing is overcrowded to allow for proper roasting.
Roast for 20-25 minutes, tossing halfway through, until the chicken is cooked through and the vegetables are tender and slightly caramelized.