My husband is type 1 diabetic and vegan and has found that his best bet is to bring his own snacks, and for meals to let the server know of his dietary issues and be prepared to talk to the chef if/when he has questions (we’ve found the chefs extremely helpful, even at busy counter service locations, so don’t be afraid to ask to speak to them).
My main suggestions from my observations on traveling with him are for your wife to consider which foods tend to trigger blood sugar spikes and try to avoid them (like, my husband used to be better with breads, potatoes and pasta than he is now, now they really mess with his blood sugar so mostly he tries to avoid those).
If bread buns are a trigger, see if a burger could be served on a bed of lettuce instead, if you go to the Cozy Cone in DCA for chili in a pretzel cone, ask for the chili in a cup instead (unfortunately they charge the same price, but they are willing to do this), if white flour pasta is a trigger, ask if they have a whole wheat pasta option that could be substituted or what alternate pastas they have for special diet needs (we’ve found sometimes the vegan pastas in the park are also gluten free pastas and some of those are easier on his blood sugar than white flour pastas). Go for dishes that sound more diabetic friendly in the description (ie, dish with quinoa over a dish with white rice, etc). Thankfully the menus are all available online now, so we check the app before leaving on our trip and prepare a list of options to have them ready in advance. Additionally, I’ve found that some table service locations that bring bread or rolls to the table don’t have vegan options so they substitute a cup of sliced fruit instead and my husband has found the fruit to be less of a blood sugar trigger. If that’s the case for her, she might want to ask for fruit instead of bread/rolls at sit down restaurants.
The main other suggestions I have are to make sure both you & she (as well as any other members of your party) know where the first aid locations are in both parks (I suggest that for any health issues, really), to bring some glucose tablets or easy sugar like lollipops or hard candies in case she has low blood sugar, and if she’s not on the pump and continuous glucose monitor to tell her to have her daily purse/bag travel kit of diabetic supplies with her and be ready to stop & check her blood sugar if she is feeling at all off. My husband brings his full kit plus more test strips than he usually carries everyday with him when we are at
Disneyland because all that walking can really mess with your blood sugar.
Basically, it is a little more work, but it’s not too bad (I’ve found that, at table service and counter service locations its actually more work to accommodate our special needs as vegans than to accommodate his special needs as diabetic), and Disneyland dining is pretty good at being flexible if you are willing to ask. Have fun!
~Meg