Place ground beef and bacon ... uncovered at 220 degrees for 15 to 20 minutes, stirring often. Stir in sour cream; heat. Serve in buns. Serves 8 to 10.
Brown ground beef with onion, ... bean on each bun half. Add cheese. Bake until ... Serve with tomato, sour cream and black olives, if desired. (8 open-faced sandwiches.)