Heat olive oil (1 tablespoon) in a large pot. Add ground beef (1 pound) and cook, crumbling with a spoon, until beef is cooked through and there is no longer any pink. Remove and discard any excess fat. Sprinkle onion soup (1 (1-ounce)package) over beef and stir.
Stir in broth (4 cups), tomatoes (1 can), and vegetables (12 ounces). Bring to a boil. Add pasta (1 cup); boil for 10 minutes. Remove from heat and serve. Pass a bowl of Parmesan cheese to sprinkle on top.
Notes
Leftovers: If you have leftovers, the pasta will absorb the savory broth and you will likely need to thin it with a few cups of water or beef broth.