I think Pru is talking balls, and not only that but I'd also get rid of blanket FSM for KS1 and Reception. The amount of food waste I see is disgusting (and I've eaten the meals plenty of times - they're nice). Black bags full of wasted food. Children will literally sometimes have a bite and that's it, no matter how much we coax and cajole.
Short of forcing it down their neck, there's not much we can do except suggest to parents their child has a packed lunch containing things they will actually eat. Parents generally won't do this though because they can get the meals for free. This is in an affluent area as well.