Cook 5 pounds ground beef in a large Dutch oven with 1 cup water, stirring occasionally until meat is no longer pink; drain. Stir in 2 onions, chopped, and 6 garlic cloves, minced. Cook until onions are tender, about 3 minutes. Cool and pack into 5 (1-quart) labeled freezer bags. Lay sealed bags flat in a pan with sides (this helps them keep their shape), and freeze for several hours. Remove frozen bags from pan, and return bags to freezer. On cooking day, heat the base, and add other needed ingredients to create tacos, sloppy joes, or beef stroganoff in 10 to 15 minutes.