Turner, say, eating Indian spinach dish (7)
I believe the answer is:
lasagna
'dish' is the definition.
(lasagna is a kind of dish)
'turner say eating indian spinach' is the wordplay.
'turner say' becomes 'Lana' (US actress Lana Turner, 1921-1995).
'eating' means one lot of letters goes inside another.
'indian spinach' becomes 'sag' (I've seen this before).
'lana' going around 'sag' is 'LASAGNA'.
(Other definitions for lasagna that I've seen before include "Italian dish" , "Baked pasta dish" , "Italian food" , "Calorie-rich food" , "Italian cooking" .)