My 4 year old son has a severe seasme allergy (we carry and epi-pen) does anyone know if hamburger buns etc at WDW have seasme seeds on them? We have not went on any major trips since we found out he is allergic to seame, it is easy being at home where you have complete control of what he eats.We read lots of labels. He reacted to humus so we also have to be careful of dips, dressing, etc. Thanks!