Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper for easy cleanup.
Prepare the vegetables by peeling and dicing the sweet potato and carrot into 1-inch cubes, chopping the bell pepper, and cutting the broccoli into uniform florets.
Place the chicken breast in the center of the baking sheet and surround it with the prepared vegetable medley.
Drizzle the extra virgin olive oil over the chicken and the vegetables, ensuring everything is lightly coated.
Evenly sprinkle the dried rosemary, dried thyme, garlic powder, sea salt, and black pepper over the entire tray.
Use your hands or tongs to toss the vegetables and rub the seasoning into the chicken so every bite is infused with herbs.
Roast for 20 to 25 minutes, or until the chicken is cooked through to an internal temperature of 165°F and the vegetables are golden and tender.
Allow the chicken to rest for 5 minutes before slicing to keep it juicy, then serve alongside the roasted vegetables.