Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into 1-inch cubes and chop the sweet potato, broccoli, bell pepper, and carrots into uniform bite-sized pieces.
Mince the garlic cloves finely.
In a large mixing bowl, whisk together the extra virgin olive oil, minced garlic, rosemary, thyme, sea salt, and black pepper.
Add the chicken and all the chopped vegetables to the bowl, tossing thoroughly until every piece is well-coated in the herb oil.
Spread the mixture onto the prepared baking sheet in a single layer, ensuring the pieces are not overcrowded so they roast evenly.
Bake for 22 to 25 minutes, tossing the ingredients halfway through, until the chicken is cooked through and the vegetables are tender with slightly charred edges.