I have been doing this for years and have never had a pot of soup turn out bad. I know this is not really what you'd call a traditional recipe, but it is yummy. My husband isn't a big fan of stew or soup, so I take it to work and the guys gobble it up, even for breakfast. lol. Enjoy!
Instead of leaving those leftovers to go bad in the fridge, start a leftovers bowl in the freezer. Chicken, beef, pork, vegetables, pasta, etc. Even if we have eaten all of a vegetable (such as peas or green beans), I throw the juice in the leftover bowl. Hey, flavor is flavor. I chop up whatever meat I have leftover and throw it in my leftovers bowl.
When I have a few bowls (enough for a large pot of soup) I take them out, run the bowl under hot water to realease the contents, pop them in a lg pot, add about an inch or two of water,and one medium size can of tomato sauce.
Turn the stove on medium heat, cover, stir occasionally to keep it from sticking. Once it has started boiling turn it on low to simmer. Eventually everything thaws and the melding of flavors is amazing. Voila you have a meal.