In a large skillet, cook beef, onion and garlic until meat is no longer pink; drain.
Add the tomatoes, water, tomato paste, parsley, oregano and salt. Stir in pasta; bring to a boil. Reduce heat; cover and simmer for 20-25 minutes or until pasta is tender, stirring once.
Combine cheeses; drop by rounded tablespoonfuls onto pasta mixture. Cover and cook for 5 minutes.