I also have celiac disease and have to have a GF diet. My husband and I were on the Lengend in April and the ship can't have a premade dinner ready as the food is prepared throughout the day and they obviously do not know what one would want to eat. However, the hostess Oana was wonderful. She stood there while we had the menu and told us what we could and couldn't have as it had gluten or soy (since I'm allergic to soy). While they put the order in for that dinner, Oana told us to review the next night's menu and it would be prepared GF for us. Then we also were told to be sure to eat breakfast in the dining room and to be sure to ask for the real eggs as the powder is what they typically use unless you ask. So beware of this also. She did say we'd be on our own on the lido deck, but we could find the chef for whichever area we were eating and he'd be able to help us by getting "fresh" uncontaminated food from a new tray in the back. I didn't bother as I just ate salads or fruit. I do have to say they will make GF bread, but unless you plan to eat it warm, it is really dry. Even warm, it's dry, but at least edible. Ha
Now with all that said, we are now booked on the Glory next May and have found out they no longer have the "special needs - dietary" form, only the wheelchair form. We had them send it to us as there is also a diabetic issue and that is the form for the sharps container.
Just an FYI, anyone that is diabetic, a GF diet is the best diet for a diabetic, but the dieticians don't tell you because it is such a life changing diet to follow. My husband has cut his diabetic medication in half - but you must be committed to follow it. This is what my dietician told me when I asked which menu to follow as we didn't want to fix two different meals each time.
Happy cruising.