Yikes, I hope I don't have to contend with that. I would heavily consider homeschooling if they tried to push that issue. Could you do a flax wrap though? Can be cut up into squares like pita bread. Both my kids (2 and 4) love it whenever I've made it. Could you find some gluten free pretzels or other gluten free breadlike items? I would also ask the school to show you where it says that homemade lunches have to abide by a certain protocol and what happens if you don't do it.