
And not a VEGETABLE in sight.
The Big Bang Theory Season 8, Episode 18

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

Dried potatoes, VEGETABLE oil,
The Big Bang Theory Season 5, Episode 24

and one large VEGETABLE.
The Big Bang Theory Season 12, Episode 19

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