To prepare roasted beets, preheat the oven to 375 degrees F. Remove the tops from the beets and wrap in foil. Roast for 45 minutes to 1 hour, or until the beets are tender. Let cool for 15 minutes, then remove from the foil and rub with a towel to remove the peels. Cool and chop, or store in an airtight container for up to 1 week until ready to use.