Portion of lasagne satisfied woman (5)
I believe the answer is:
agnes
'woman' is the definition.
'portion of lasagne satisfied' is the wordplay.
'portion of' says the answer is hidden in the clue.
'AGNES' is hidden within 'lasagne satisfied'.
(Other definitions for agnes that I've seen before include "The Eve of St. - (Keats)" , "Patron saint of virgins" , "Scandinavian singer" , "David's second wife" , "Lady" .)