Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper for easy cleanup.
Peel and cube the sweet potato into 1/2-inch pieces, slice the carrots into rounds, and chop the broccoli into bite-sized florets.
In a small bowl, whisk together the extra virgin olive oil, minced garlic, dried thyme, dried rosemary, sea salt, and black pepper.
Place the chicken breast and all the prepared vegetables on the sheet pan, then drizzle the herb oil over everything, tossing well to ensure an even coating.
Spread the ingredients out in a single layer, ensuring the chicken has enough space to roast properly.
Bake for 20-25 minutes, or until the chicken reaches an internal temperature of 165°F and the sweet potatoes are fork-tender and slightly browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy and flavorful.