Shred beef with two forks; transfer to a Dutch oven. Add the tomatoes, vegetables, water and salt.
Bring to a boil.
Stir in pasta. Reduce heat; Simmer uncovered for 15 minutes or until flavors are blended and pasta is tender.
Yield: 8 servings.
1 package refrigerated beef roast au jus (I think the one I found is a Hormel product, but Im sure there are others and Im sure it would be equally good if you had left over meat from a homemade (17 ounce pkg)