
Of course it is. It's a little wrong
to say a tomato is a VEGETABLE.
The Big Bang Theory Season 2, Episode 20

The world's most boring liquid
and the world's most boring VEGETABLE,
The Big Bang Theory Season 10, Episode 13

...shrimp with lobster sauce,
and VEGETABLE lo mein.
The Big Bang Theory Season 1, Episode 7

Thursday is now
cruciferous VEGETABLE night.
The Big Bang Theory Season 4, Episode 2

...Thursday is no longer
cruciferous VEGETABLE night.
The Big Bang Theory Season 4, Episode 2