Roasted Beet Salad

Preheat the oven to 425 degrees. Scrub the beets and wrap them tightly in aluminum foil. Roast until tender, about 45-75 minutes, depending on size. Unwrap the beets and when they are cool enough to handle, peel them. Cut the beets into bite size pieces. Place the beet chunks in a bowl. Add the onion, olive oil, wine vinegar, lemon juice, dill and mint. Toss ingredients. Let rest for 15 minutes before servings. Serve at room temperature.