I just returned from Disney, this is what I ate, I am vegetarian and gluten free which limited me a little more than just being gluten free.
At Hollywood Studios - Mama Melrose - Polenta Cake, Mushroom, and Herb Cauliflower (this was so good!) and Flourless Chocolate Cake for dessert (also really good). They brought me out some really good gf rolls with olive oil and spices to dip it in - really good! I also got the S'mores breakfast sandwich at Woody's lunchbox made gluten free and it was decadent!!! I highly recommend this for a treat!!!
At Magic Kingdom - Be Our Guest Gluten free waffles, just ok, nothing special, the breads offered with it were great though. For Snack credit - chips and queso at Pecos Bills (loaded with salsa and corn salsa and lots of fixins)
At Kona at the Polynesian - Vegetable Bowl (just ok) but the Tapioca pudding for dessert was so, so good! They also brought me out some rolls and butter - the same rolls as Mama Melrose.
At Animal Kingdom - Satu'li Cantina - tofu, rice and black bean bowl with creamy dressing (yummy!!), At the Nomad Lounge - gluten free churros (the best thing ever), at Tusker House - lots of options at dinner buffet! Too numerous to mention. The dessert here was lacking - there was a little cheesecake item (I think) and enjoy life cookies. I am not big on dessert and I was completely stuffed so I didn't mind too much.
At Epcot - at Electric Umbrella I got the Vegetable Quinoa Salad (really good), At Spice Road Table the chef made me a yummy dish with stuffed grape leaves, saffron rice, lentil salad, hummus and grilled string beans (really yummy) and mango sorbet for dessert. They also brought gf rolls and butter. At Teppan Edu I had a tofu veggie meal (really good). The chef prepared mine first on the cleaned grill and brought me out my own gluten free soy sauce, and the yum yum sauce there was gluten free. The only gf dessert available there was soft serve ice cream. At the Coral Reef I had a skewered veggie dish, it was really good. They had to eliminate the eggplant meatball from the dish because it was made with bread crumbs. At La Hacienda de San Angel I had Vegetable Enchiladas (amazing!!) and Mango sorbet for dessert. The chips and Salsa at La Hacienda are gluten free. At the Food and Wine Booths I had the Brazilian Cheese Bread and the Madras Red Curry in India - both were great.
At Pop Century I only ate some gf pizza and gf Mickey waffles. They have grab and go gf items in the food court - cookies, brownies and gf bagels. I think the gf bagels were udi's. I did grab one of these and some cream cheese to go for a snack credit on my last day to eat on the way to the airport. It was not really yummy but I was happy to have something to go.
All in all, the staff was great with preparing everything and I always feel comfortable dining at Disney!