Word for "food only partially eaten"

Is there a single word to refer to a food item which has been partially eaten or tasted by someone?

To elaborate, let's say there is a bowl of noodles on the table, and someone took a spoon of noodles from that bowl. Someone else comes along and wants to take that bowl.

How do you tell him that the bowl has been tasted by someone else? Is it simply This is used like we refer to other objects?

Solution 1:

If the other person took a taste to claim the food, you could say This is taken.

Solution 2:

You might consider using leftover.

Solution 3:

Also leavings, and scraps.

Solution 4:

No terse way to say this in English that I know of.

There is a Seinfeld episode where Costanza is at a funeral and dips the same chip into a bowl of dip twice, and get's caught out and accused of "double dipping". It is not the same thing, but points up the limitation of english for the ability to describe this notion of "contamination" (state change) of a shared dish, because the point of the question here is not that someone has "taken a share from a shared bowl" but that they have "eaten from a shared bowl", and having done so, made the shared bowl their own bowl.

So, the name for the bowl at that point is theirs.