Take left-over beef roast, broth, and vegetables and turn it into a soup.
For step-by-step instructions and pictures, go to:
Simmer beef broth and drop rivels into the simmering broth.
To make rivels. Mix flour, salt and pepper, and eggs together to create a soft dough.
Drop them by little chunks into broth and simmer for about ten minutes.
Add already cooked, cut-up vegetables and meat to the rivels and broth, heat up and serve.