Call ahead to the restaurants that you are visiting....they will accomodate you. My daughter has a milk allergy, son has a peanut allergy. When we made PS's we had it noted on the reservations about the allergies. To take it a step further with some restuarants, for the Ice Cream Social, I called the day before (again) ...they put me in touch with the chef. He said that they had rice dream in the resuaturant and would make her a special sundae. On t he day of, he personally came out to the table to speak to me about her sundae...and than he personally delivered the sundae to our table. He said that most of the restaurants do have access to rice dream , you just really need to call in advance and let them know. (and just to be on the safe side, do like I do...and call again the day before. I have it noted on all PS's, but only call again for certain meals, like the Ice cream social or the kids events that I won't be in attendance for to monitor the food, such as the Pirate cruise or the Wonderland tea party)
With my sons peanut allergy, I was nervous about the pirate cruise, since I would not be with him. I called several times, and than mentioned it again when I dropped him off....instead of peanut butter, they gave him a different kind of sandwich. ALSO...for my daughter at the Wonderland tea party,they reserved a special chair right next to Alice, so that she would not be given anything with milk. I have found disney to be VERY accomodating with food allergies....any other questions, please feel free to PM me!!!!