Preheat oven to 425 degrees. Line a rimmed cookie sheet with aluminion foil and spray with non-stick cooking spray.
Combine carrots, parsnips, sweet potato, and red onion in a large bowl.
In a small bowl, whisk together olive oil, Better Than Bouillon Premium Seasoned Vegetable Base, Italian Seasoning, salt, and garlic powder.
Pour oil mixture over root vegetables and stir to evenly coat the vegetables.
Pour root vegetables onto prepared cookie sheet and arrange in a single layer.
Roast root vegetables for 50 minutes, until fork tender, stirring half way through.
Serve immediately or referigerate up to 3 days.