In a large pot, brown ground beef with onion, add garlic in last minute or so; drain if needed.

Add broth, spaghetti sauce, and water. Bring to a boil.

Add spaghetti and reduce heat.

Cook, covered, for 17 to 20 minutes or until spaghetti is cooked al dente. Stir occasionally and add more water, if needed. Stir in Parmesan.