Preheat oven to 425 degrees Fahrenheit.
Place all the vegetables in a large bowl. Toss with the turmeric, salt, ground black pepper, and oil.
Spray two large baking sheets, or line them with foil or parchment.
Divide the veggies on the two baking sheets, leaving some room between the pieces so they won't steam.
Bake for 35-40 minutes, stirring every 10-15 minutes to ensure all sides are evenly roasted.