I agree that dealing with picky eaters is tough but I don't understand why providers stress over it. Either way the food is gone. Either the children eat it or the garbage gets it so I really don't see what the difference is.
Why stress about it? Make healthy options and serve the food. It is up to the child to eat. or not eat. You can't force them to do it.
Food is one battle I really don't like to get into with kids. They will ALWAYS win.