i have always been firm on meal time! I inform the kids that what we eat is healthy and helps them to grow big and strong, what kid doesn't desire to grow "big and strong" I have gotten it all...from throwing up all over the lunch table when I ask them to try everything, to gagging on green beans, I had a boy try and swallow a cherry tomato whole and choke (I now cut in two), but they still have to try everything. I know I am a big meany, but I am not serving a plate of garbage or maggots I am serving good and healthy food. They are required to show respect when they are at my table, no complaining, no crying as a matter of fact, I like to hear "thank you for lunch" and see smiles. As long as they attempt I am proud of them, if they finish it all, even more proud! With some picky eaters, I will offer the rest a yummy surprise after lunch if they clean their plates and you would be amazed at how fast that "picky" eater will eat their food as well!
I do have to add, things are much more difficult if the parents are not encouraging the same behavior at home as well, I always talk with the parents and inform them of the issue, let them know what I expect here and point out, the best results will come from us all being on the same page. Just like any other issue, potty training, behavior expectations...if only one of us is working with the child, they will get mixed signals and will make things twice as hard to deal with. Heres to hoping your parents are on board with you, and not giving in at home!