Here is another variation on left-over soup. It does not require flour or broth. Any left-over cooked beef will work. Hamburger is the easiest. If you are using steaks or roast cut into bite size pieces.
corn (1 can)
green beans (1 can)
diced tomatoes (1 can)
Sauté onion and garlic in butter for 5 minutes. Add meat and any juices from meat. Continue cooking for 5 more minutes. Add tomatoes, green beans, corn, salt, and about 2 cups water. Stir. Simmer for 2 or 3 hours, longer if possible. Stir occasionally. Add water as needed until the last hour. Simmer for 30 mins to 1 hour after the last water is added for fullest flavor.