The noun 'vegetables' is a count noun, the plural form of the noun vegetable.
An uncountable noun is a word for things or ideas that can't be divided into separate elements, something that can't be counted, such as oxygen, education, advice, etc.
Transport is both countable and uncountable as a noun.
countable
uncountable
Uncountable
uncountable
uncountable
Uncountable
The gerund painting is a countable noun, as in "There are 12 paintings in this room."
Countable
few is countable
countable
The noun 'steel' is an uncountable (mass) noun, a word for a substance.