Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Slice the sweet potato into half-inch thick rounds and break the broccoli into bite-sized florets.
Finely mince the garlic cloves along with the fresh rosemary and thyme leaves.
In a large mixing bowl, combine the chicken breast, sweet potato rounds, and broccoli florets.
Drizzle the olive oil over the mixture and sprinkle with the minced garlic, herbs, sea salt, and black pepper.
Toss everything thoroughly until the chicken and vegetables are evenly coated in the oil and aromatics.
Spread the ingredients in a single layer on the prepared baking sheet, ensuring the chicken is not crowded to allow for even browning.
Roast for 22 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the sweet potatoes are tender.
Remove from the oven and let the chicken rest for 5 minutes before slicing to ensure it stays succulent and juicy.