Dieter's meal, maybe (5)
I believe the answer is:
salad
'dieter's meal maybe' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for salad that I've seen before include "Mainly raw cold dish" , "vegetarian dish" , "Raw greens, mainly" , "Cold dish of raw vegetables" , "See 22" .)