[user104658]

The idea that it's "bratty" to not eat something that you find repulsive is so outdated I don't even know where to start.

Like I said... If the kid seems unwell or under-nourished then it's time to call in parents and figure out what's going on, take it further if needs be.

If she's NOT under-nourished then frankly it's no one else's ****ing business what she does or doesn't eat, just as with every other human being on the planet.

I'd also add here that even if she does have a problem (which from this story doesn't sound like the case at all) - the absolute worst thing you can do when someone has an eating disorder is FORCE them to eat. Actually no there is something worse. Forcing them to eat food that's been in a bin. How it's not obvious that this risks making an eating disorder 10x worse is beyond me. Engage your higher brain functions folks, step away from that indoctrinated "clear your plate!!" authoritarianism.