Preheat oven to 400ºF and cut a square piece of tin foil. Rinse the beet under water and cut off the root end with a sharp knife and then cut the beet into fourths.
Set beet in the center of the foil & drizzle with olive oil. Season with salt and pepper. Wrap the tin foil tightly around the beet and place on a baking sheet.
Roast the beat for 30-40 minutes (depending on how large the beet is) or until the beet is fork tender.
Remove the beet from the oven and let the beet cool for about 5 minutes before carefully peeling off the skin.