Just visited with the VIP Cabanas. At the cabanas a server can bring you food from almost anywhere in the park.
The actual water park is pretty limited in offerings but you CAN bring your own food if you have a medical or allergy reason.
I was able to order a hummus plate and leave off the pitas, frozen grapes, and the nachos (chips processed at another facility - I had no issues and no wheat was listed in the ingredients), and Dole Whip. Plenty of desserts are gluten free but for a substantial meal it’s going to be limiting.
The burgers can be made without the bun but I’d worry about cross contamination. All the fried items are fried together so fries are a no go.
— Somewhat
— No gluten-free information on the menu
— Some
— Average