Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Scrub the sweet potato clean and slice it into 1/2-inch thick wedges.
Place the chicken breast and sweet potato wedges on the prepared baking sheet.
Drizzle the chicken and potatoes with olive oil, then sprinkle evenly with sea salt, black pepper, rosemary, thyme, and garlic powder.
Toss the potatoes to coat and rub the seasoning into the chicken breast.
Roast in the oven for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the potatoes are tender and golden.
While the chicken roasts, place the broccoli florets in a steamer basket over boiling water and steam for 5 minutes until vibrant green.
Let the chicken rest for 5 minutes before slicing, then serve alongside the roasted sweet potatoes and steamed broccoli.