Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Peel and dice the sweet potato into 1/2-inch cubes and slice the carrots into thin rounds.
Place the chicken breast, sweet potato cubes, carrots, and broccoli florets onto the prepared baking sheet.
Drizzle the extra virgin olive oil over the chicken and vegetables.
Evenly sprinkle the dried rosemary, dried thyme, garlic powder, sea salt, and black pepper over all ingredients.
Toss the vegetables and coat the chicken thoroughly with your hands or tongs to ensure every piece is seasoned.
Roast in the center of the oven for 20-25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender and lightly browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy.
Serve the sliced chicken alongside the roasted vegetable medley.