This is what
Disneyland sent me in an email when I asked about this... They did say that it sometimes takes 7 days to get a response. There was also a link, but I don't have enough posts to post it - you can PM me if you want the link.
For questions regarding accommodations for special dietary needs while
at the DISNEYLAND® Resort theme parks, including product availability,
preparation methods, and ingredient lists please contact our Chefs at
(714) 781-3569. They may not be available to answer all calls
immediately; however, they will answer all messages left on voice mail.
For the Hotels of the DISNEYLAND® Resort, please contact the Chef's
Office at (714) 956-6719.
**Always ask to speak to a chef or manager as vendors, products, and
ingredients may change. Ingredient labels are available upon request.
Please be aware some locations may close due to rain or slow times in
the Park. Some menu items will require an additional preparation time
and due to Guest demands may not be available. Disneyland Park
Various Fruit Carts: located throughout the park with fresh whole fruit,
cut up fruit packages; ask for ingredient list for any prepared items