Hi! Sorry, I was spending time actually scrapbooking our trips from '05 and '06 at long last.
Hubby uses stevia and really likes it. It's an herb, not a pure chemical (and I don't mean it's pure, I mean it's purely chemical) like aspartame, and it's not lab-changed sugar like sucralose either. I don't use it, I had a VERY bad experience with herbs during my labor with DS, and I just don't trust 'em! OK so I use oregano and things like that, but pretty much anything beyond that I start remembering my opposite reactions to the herbs the "midwives" were giving me and I feel the need to hide under a table.
ANYWAY. Since hubby's life-change (aka diabetes diagnosis) we've been using lots of "fake meat", LOL. For protein, so that our meals aren't as carb-heavy as it is so easy to do as an ovo-lacto vegetarian. I wish there was something good from a place other than Morningstar Farms b/c they are owned by Kraft or some other equally distasteful mega-corporation that messes about with food genes, but for protein we have a hard time beating the Chick'n Strips.
But I don't know the gluten content of them...they might be grain-based and therefore bad for
you.
We do have to avoid quite a bit at the parks, I won't lie! Because of the corn syrup problems (they turn DS into a raging demon, though we call it a "dragon" in front of him) we have to avoid most ice creams (corn syrup more often than you'd think, though we generally trust Haagen Dasz but just haven't made it to their DTD location to look through their ingredient lists), Mickey Bars (corn syrup in the ice cream), dole whips (corn syrup solids), Uncrustables (both corn syrup and high fructose corn syrup)...caramel apples (corn syrup in the caramel b/c they're lazy and refuse to make it properly, LOL), other decorated apples b/c they have caramel under the chocolate etc, anything with white chocolate (corn syrup)...of course as vegetarians anything with marshmallow is out. It goes on and on. All the FUN food!
Then again, we've discovered the ingredient lists of all these things because DS ate one of them then flipped out. So the memory of those times makes us remember that those foods, you know, aren't so "fun" after all.
We had been bringing granola bars for quick energy and tummy-fillers, but now we have discovered Clif Bar brand MoJo bars. They are 70% organic and have none of the corn syrup crud, and they have 8-9 grams of protein!

And only 180 calories!
We do use peanut butter (organic, to keep away from unexpected ingredients) perhaps more than *my* hips should, but since its there and thankfully we don't have issues with peanuts (knock wood) I figure we'll use it.
We love eggs, and we'll get the breakfast dishes with eggs and potatoes at DLR. The breakfast burrito at WWS comes in a big, but really thin, tortilla/wrap, but I found it's just as good when you dump the filling out of the wrap and leave the wrap alone.
This xmas/yule time, I had fun making cookies, and then we were ridiculous GOOD with them. Seriously scary stuff, considering our history. But we're just discovering that feeling extremely ill after eating really takes the good taste out of what you're eating. Sadly that can only be gained by experience, you can't just send that info into someone else's heart and head.
Our treats at DLR. DS hasn't found a problem with their big-as-his-head chocolate chip cookies (which is great, b/c cheaper vanilla often has corn syrup, and even HFCS, and since he reacts to the corn syrup SOLIDS in things, he's pretty sensitive!). If I get one, I try to eat it slowly. Hubby now can easily refuse more than a small bite (amazing...seriously, talk to his mom...hubby was a major food sneak growing up and even into his 30s), and sometimes won't have any sweet stuff at all.
Is it
all dairy you can't have? Hubby has problems with straight milk, but he eats small amounts of cheese (weight watchers serving) and he generally has cottage cheese after dinner instead of dessert, because of the protein being higher than a glass of milk, and it doesn't cause the snoring that a glass of milk causes.
You might look into if you can have quinoa. It's an "ancient grain" that has the highest protein content of the grains, and while it takes some time to figure out how to cook with it (first step, making sure all the tiny stones are out of it so you don't break your tooth), it's versatile like tofu, in that it has little of its own taste, and takes on whatever you cook it with.
I urge you to contact Disney Dining and ask to have their chef in charge of food allergies call you regarding trips to DLR and what you'll be able to eat and ask to have made for you. Have a list of questions/topics so when he calls you back you don't forget something. A little while back Dining was telling people that there was no such position anymore, but then after that people were put through to the same guy I talked to. Like with all CM stuff, if you get someone telling you something you are 99.99% sure is wrong, hang up politely and call back.
Also, google around for support forums for those with your condition. I can't tell you how helpful it is to find people like you. When I finally figured out DS's problems with corn syrup it was heaven to find people who also can't handle it. And what's interesting is that some people with dairy and even gluten sensitivities can have the same awful, VIOLENT, out of control behaviour when they consume those things.
Food is powerful, and as you know, eating the wrong food for your body is akin to eating poison... So it's great to find a group of people with the same problems, because some of them will be ahead in the process, and will have all sorts of great tricks.
I will leave you with this! Years ago while reading an Earthsave Foundation booklet (founded by the vegan grandson of Robbins of BaskinRobbins fame...talk about difficult family reunions!) I came across a brilliant article based on research. If you think of what nature created for infants, mama's milk, and if you think of the MASSIVE growth that babies undergo in their first year, you must assume that that growth takes huge amounts of protein. Right? Well you'd think so. But the food nature gave babies, mama's milk, has only 4% protein. 4% to accomplish all of that growth.
So if a person doing more growing in a year than we do each year for the rest of our lives (relative to original body size of course) is meant to do it on something that's only 4% protein, why on earth do we grownups think we need more?
(And as an aside...hubby agrees with this, but sometimes NEEDS some extra protein or he feels really awful. I agree much more with it, but when pregnant found myself craving salami, LOL. So the mind can agree but sometimes the body doesn't, and that's OK, IMO it's good to just hear the concept)