Preheat oven to 400 degrees.
Wash and rough chop all veggies and place in a large bowl.
Drizzle with olive oil and sprinkle with sea salt (if using), Italian seasoning, garlic, and pepper. Stir to coat evenly.
In a 9 x 13 baking dish, place chicken breasts and lightly sprinkle with sea salt, pepper, garlic powder, and Italian seasoning to taste.
Pour prepared vegetables around chicken.
Bake for 30 minutes, or until chicken is fully cooked.