Meatball Soup

1 package frozen meatballs ($.75)
1 jar spaghetti sauce ($.25)
2 1/2 cups water
1 package cheese tortellini ($1)
1/2 cup Parmesan cheese ($.50)

In large pot, combine meatballs, sauce, water, and tortellini. Bring to boil. Reduce to simmer for 20 minutes, or until tender. Top with Parmesan cheese.