Hi Veronica! Christmas in Walt Disney World is beyond magical. To visit at that time will allow you to see the magnificent decorations within the parks and resorts. Make sure you save some time to resort hop to see some of the long time favorites such as the chocolate carrousel in the Beach Club or the life size gingerbread house at the Grand Floridian.
Each and every Disney restaurant is geared to take care of all guests who might have a food allergy. Your table service locations will offer better choices then a quick service spot so please keep that in mind. Those locations need advanced reservations and they book quickly. Buffets can be a little trickier so make sure you notify a chef who will be glad to walk you through the line letting you know what you can or cannot eat.
Please read the page concerning
Dietary Requests. The information here will help you identify the best course of action to take. If you have any questions at all please email the dietary team at Special.Diets@disneyworld.com. You can ask them directly if they know about the special pizza you would need. I know the new pizza restaurant in Disney Springs,
Blaze Pizza, does offer a gluten free but not sure about the eggs.
Have a great vacation and a very happy holiday!