What are the nouns in this sentence?
She liked thick crusts better than the thin and crispy type, but she wasn't really fussy.
Are they: liked, crusts, thin, crispy, type,
Or are they just: liked, and crusts. Is type a noun too in that sentence?
Yes. The two nouns are crusts and type.
The verbs are liked and was.
The adjectives are thick, thin, crispy, fussy.