Is pasta is a countable noun or uncountable noun?

Pasta can be both a countable and uncountable noun, depending on the context.

Countable:

* When referring to individual pieces of pasta, it's countable. For example: "There are five pasta shapes in this dish."

* When referring to different types of pasta, it's countable. For example: "I tried three different pastas at the restaurant."

Uncountable:

* When referring to pasta as a general food category, it's uncountable. For example: "I love pasta, it's so versatile."

* When referring to a large quantity of pasta, it's uncountable. For example: "There's so much pasta left over."

So, the way you use pasta in a sentence determines whether it's countable or uncountable.