I have been researching the same thing for a friend who will be traveling with us and has a DD3 with a peanut and egg allergy. I found a great post which I copy and pasted and sent to my friend. I am quoting it to you now but I don't know where I saw the post so I can't give proper credit to whoever wrote it:
"First contact Brenda Bennett now and let her know when you will be there she will send you a list of safe foods in the parks.
Brenda.Bennett@disney.com
Second any ADR's you have call back and have them note the peanut allergy, if they don't give you the phone numbers to the resturants ask for them. You can call before you arrive and let them know you will be there on a certain day and they will help you with the menu.
I have never called in advance, I just had it noted and when we got to the resturant we reminded the waitress and then the Chef came out and helped us chose the right food.
But basically I have found that any child menu food has always been safe, except of course the PB sandwitch. Even though it is safe the chef will make it personally and deliver it to you and will be there right through dessert.
At buffets the chef will walk you though the buffet and let you know about all the food.
My son is big on chicken nuggets and hot dogs and fries so most of the time we had it easy.
The Itzakoodize and Mickey ice cream bars are safe foods.
They now sell Divves packaged cookies and popcorn that are made in a Peanut Free Place.
The email you get from Brenda will have all this information.
We have been told any bread/roll that is brought to the table is not safe because they do not make it.
Wolf Gang Pucks on the West Side at Downtown Disney use Peanut oil in just about everything they make, so we stay away from there.
My son has never been deprived with any food in Disney, there is alot he can have there they will go out of their way for you. My son is just not a big eater.
If you want him to have cake of any kid for dessert, then I would call ahead of time and they will make something safe for him. We had a birthday cake for my son for is Bday one year.
Just tell everyone everywhere you get food thay will help you."
Hope this helps you as much *** it has helped us and thanks to maria wherever you are for this information!