Slice 2 carrots on the bias, cut 1 head broccoli into florets and cut 3 scrubbed golden or candy-striped beets into wedges. Spread out the vegetables on a baking sheet, add 6 to 8 thyme sprigs and drizzle with 1/4 cup olive oil; season with salt and pepper. Roast at 425˚ until the vegetables are tender, 20 to 30 minutes. Serve warm or at room temperature.