Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Pat the turkey breast dry with paper towels to ensure a golden-brown finish.
In a small bowl, whisk together the olive oil, sea salt, black pepper, rosemary, thyme, and garlic powder.
Place the turkey breast, halved Brussels sprouts, and cubed sweet potatoes on the prepared baking sheet.
Drizzle the herb oil mixture over everything, tossing the vegetables and brushing the turkey to coat evenly.
Roast in the oven for 25-30 minutes, or until the turkey reaches an internal temperature of 165°F and the vegetables are tender.
Let the turkey rest for 5 minutes before slicing to keep the juices locked in.
Serve the sliced turkey alongside the roasted vegetables for a complete, clean-eating meal.