Combine sauce packet with water and tomato paste. Bring to a boil and simmer 2-3 minutes, stirring occasionally.
Remove from heat and add crushed tomatoes, Parmesan cheese, and milk.
Bring to a boil, reduce heat and simmer 3-5 minutes. Additional water may be added for a thinner sauce.
Serve over cooked and well drained pasta.
Meat sauce variation: Pour 3 cups water in pan. Add 1/2 lb ground chuck or ground turkey, breaking meat into fine pieces as it cooks over medium heat. add tomato paste and water and proceed as above. Serves eight.