After many years, we finally have a lunch down for my 12 year old son.  Same can't be said for my daughter.  I want it to be healthy, but far too much food comes back uneaten.  I've got a child who doesn't like sandwiches or cheese or milk or yogurt.  She'll do the occasional peanut butter sandwich at home, but ones sent to school always come back uneaten.  She doesn't like nuts.  Sometimes I can get her to do apples and peanut butter.  Any ideas for a good, solid "main course" for lunch for a kid who doesn't like...well...ANYTHING?  :)