Preheat the oven to 425 degrees F.
Divide all of the vegetables between two baking sheets. Drizzle half the olive oil and sprinkle half the salt and spices over each baking sheet. Use your hands to toss everything together until the vegetables are all coated with spices and oil.
Place both baking sheets in the oven (aim for the center racks) and roast 25 minutes without touching. Remove the vegetables from the oven, give each tray a quick stir or shake, and place them back in the oven. Roast 10 minutes more, or until vegetables are golden-brown and have reached desired done-ness.
Serve alongside your favorite entree!