I do find that whenever there us a list of best restaurants in/around Disney/Kissimmee, they almost always include chains and Disney restaurants. The known is comfortable for most people - especially with children.
We always ask the resort staff when we check in, "where's the best place to eat around here?" We say we want to eat where locals eat. About 15 years ago, a young man gave us the address for a barbecue place a few miles away. Several backroads later, we arrived at the least glamourous restaurant you can imagine. Wooden screen door slapping constantly, tables with countertop material worn through. The smell was mouth-watering and the food...amazing! Absolutely amazing. That was our best find to date. Couldn't find it again on a bet but it was certainly memorable.