Shredded Beef, Bean, and Corn Fajitas... Shredded Beef, Bean, and Corn Fajitas   Ingredients 1 red onion, cut into thin wedges (1 cup) 2 small cloves garlic, minced 1 tablespoon olive oil 2 cups Shredded Beef Master Recipe (see recipe below) 1 14 1/2 ounce can Mexican-style stewed tomatoes, cut up 1 cup frozen whole