These root vegetables come out of the oven tender and sweet.
Preheat oven to 475 degrees. Arrange vegetables in a single layer on a rimmed baking sheet. Drizzle oil over vegetables, and lightly toss to coat evenly. Season with salt and pepper, and sprinkle with thyme.
Roast vegetables, turning occasionally, until they start to brown and are tender, about 30 minutes. Remove from oven; transfer vegetables to a serving platter, and serve immediately.