Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Slice the sweet potato into 1/2-inch thick rounds and place them on one side of the prepared baking sheet.
Pat the chicken breast dry with a paper towel to ensure the herbs stick and the meat browns properly.
In a small bowl, whisk together the olive oil, sea salt, black pepper, garlic powder, dried oregano, and dried thyme.
Brush half of the herb oil mixture over both sides of the chicken breast and the remaining half over the sweet potato rounds.
Place the chicken on the baking sheet next to the potatoes and roast for 20-25 minutes, or until the chicken reaches an internal temperature of 165°F.
While the chicken and potatoes roast, steam the broccoli florets in a steamer basket over boiling water for 5-7 minutes until bright green and tender-crisp.
Remove the baking sheet from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy.
Plate the sliced chicken with the roasted sweet potatoes and steamed broccoli for a clean, balanced meal.