Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper for easy cleanup.
Dice the sweet potato into 1/2-inch cubes and slice the carrots into 1/4-inch thick rounds to ensure they cook evenly with the chicken.
Place the chicken breast, diced sweet potato, and carrots on the prepared sheet pan.
Drizzle the extra virgin olive oil over everything, then sprinkle with dried rosemary, dried thyme, garlic powder, sea salt, and black pepper.
Use your hands or tongs to toss the ingredients until everything is thoroughly and evenly coated in the oil and spice mixture.
Spread the ingredients out in a single layer, ensuring the chicken has space around it to roast rather than steam.
Roast in the oven for 20-25 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are fork-tender and slightly browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing it into strips.
Garnish with freshly chopped parsley and serve immediately while the vegetables are still crisp on the edges.