Looking at cooking foods (stews in this case) shows all of the items. Trying to pick them up, to see when they are ready, only displays one item.
Other items being prepared: drying, smoking at least, do display the items/stacks properly. Please see attached.
I guess it's possible, that the game doesn't show the items separately if their ready status is close enough, but in that case, it'd be nice to see how long until the cooking foods are ready.