I would love an option to limit pawns to certain kinds of food without having to manually zone them out or forbid specific stockpiles. I wanted to make a separate freezer with just advanced meals as a backup for hard times, but it seemed overly finicky, imho.
You can currently assign clothes and drugs, so why not certain kinds of food? If it's already in there I certainly missed it.
I just wanted to have everyone eat normal meals all the time but have a cook dedicated to cook advanced meals for storage so when the shit hit the fan, I could release those meals and survive whatever it was.
This also brings up options like "food snob" (will only eat advanced meals), "vegetarian", "vegan", "meat lover" and so on.