Dish: take hearts of some eels, feta and stew (8)

I believe the answer is:

omelette

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'dish' is the definition.
(omelette is a kind of dish)

I can't explain the rest of the clue.

(Other definitions for omelette that I've seen before include "Broken-egg dish" , "breakfast" , "Cooked egg dish" , "Food dish (that can't be made without breaking eggs)" , "Dish of cooked beaten eggs" .)

I've seen this clue in The Times.

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