Pasta nut (6)
I believe the answer is:
noodle
I believe this is a double definition.
'pasta' is the first definition.
(noodle is a kind of pasta)
'nut' is the second definition.
(thesaurus)
(Other definitions for noodle that I've seen before include "Head - simpleton - found in soup" , "bit of a dish" , "Form of pasta" , "Flat strip of pasta" , "Staple of Chinese cuisine" .)