Pre-heat oven to 400 degrees.

Slice your onions. Set aside.

Wash and peel your beets. Cut the beets into large cubes.

Add the beets and onions to a large cookie sheet. Add the olive oil, salt & pepper. Toss to combine.

Cover the cookie sheet tightly with aluminum foil.

Roast the beets in the oven for 30 minutes. Uncover the beets, give them a quick toss. Return them to the oven for an additional 30 minutes or until the beets are tender and sweet!