Icky Picky Eaters!

Okay, this is kind of a plea for all of you moms or nannies, or other people that read my blog. I have a really REALLY picky eater, and I am not sure what to do about her. I can't tell her that her dinner will sit there until she is hungry, because the mom and dad are not like that. No threats will work, she just goes and calls her mom or goes and cries to mom. She thinks that it is okay to skip breakfast because kids at her school are (she think's she will be cool??) There is very little that she will eat. She will take a bite and say she hates it...but she doesnt have a big variety in what she eats, and I dont know what to do!!!! HELP!!