Leftovers make excellent soup.
To four cups of reheated
turkey stock I made three days ago, I added...
...previously frozen vegetables and a cup of fun-shaped pasta. The pasta MUST be fun-shaped; I let it all boil for 2 minutes, then turned the heat off, covered the saucepan for ten minutes to let the pasta finish cooking.
See? How fun is that? This barely:) took any time at all.