I feel for you, my son is autistic, and has sensory and oral motor issues that limit his diet. I always thought if a kid got hungry, they'd eat. But then ds lost over 20% of his body weight, was getting lathargic and they started talking about feeding tubes. With years of therapy, and a little luck since he will eat round foods, he does ok. Thankfully nature makes a lot of round food! Just not much round meat, so we struggle with anemia and protein intake.
One weird thing, he will eat most wdw food. He ate the pizza sandwiches at sunshine seasons! You never know, your dd may surprise you. For some reason, ds does somuchbetter at wdw, in some areas.
Can you bring some of your own food?