Is there any difference between
Let's go eat Italian food.
and
Let's go eat some Italian food.
I'm not really sure when to add "some" in the sentence.
Is there any difference between
Let's go eat Italian food.
and
Let's go eat some Italian food.
I'm not really sure when to add "some" in the sentence.
"Food" is a non-count noun. For example, you could say "I like food", and that could mean food in general. As soon as you add a determiner like 'some', then it becomes specific food.
So, "let's eat Italian food" is really just an expression of the cuisine you want to eat. It sounds like a suggestion from which you could go on to choose a specific restaurant to eat in, or choose pizza, pasta, whatever.
Saying "let's eat some Italian food" doesn't sound as idiomatic to me, but it certainly isn't wrong. It sounds like perhaps you have a clearer idea of the food you want to eat. Perhaps you have a restaurant, or a dish in mind.
Also note that "let's go eat..." is chiefly US English. In British English, we would nearly always say "let's go and eat....". We also tend to omit the word 'food' from cuisines, for example, "shall we go for Italian?" or "let's get a Chinese".