Variants: 1. Obvious is to use fresh, peeled tomatoes but you will need to add tomato juice as well. 2. Add some crushed garlic cloves while this is simmering. 3. Feel free to add cooked meatballs. Feel free to add ground meat of your choosing, cooked of course, at the end of the cooking. 4. Feel free to use a seasoning during cooking, remember, make this your own sauce, my Italian seasoning is listed as a shortcut.
Adapted from an internet recipe.