Still being a noob at making these I probably overcomplicated the mechanism. Actually, all of the food entry clues have a second word somewhere in the grid that also fits. e.g. 75A "Smile for the camera" could also be 61A entry "grin". If you take the first letters from the clues to these second words, it spells out SANDWICH.
Fun! It took some sorting out, but I had felt some alternate cluing as I was completing the grid and I had an idea of what I was looking for. Good work there. :D