Preheat oven to 400°F (200°C).
In a large bowl, toss the vegetables with olive oil, Italian seasoning, salt, and pepper.
Place the chicken breasts on a baking sheet and arrange the seasoned vegetables around them.
Bake for 25-30 minutes or until the chicken reaches an internal temperature of 165°F (75°C).
Remove from the oven and sprinkle with Parmesan cheese before serving.