Miso soup cubes
I believe the answer is:
tofu
'miso soup cubes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tofu that I've seen before include "Soya bean product used in Asian and vegetarian cookery" , "Cheese-like vegetarian food" , "Food made from beans" , "non-meat protein" , "Form of curd" .)