What's the plural form of tomato sauce? Here's the word you're looking for.
Answer
The noun tomato sauce can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be tomato sauce.
However, in more specific contexts, the plural form can also be tomato sauces e.g. in reference to various types of tomato sauces
or a collection of tomato sauces.