We just got home on Saturday - we had 2 different experiences with this during our stay (my 11 year old daughter didn't really like the offerings on the adult menu, but the child's menu serving sizes were too small). At Carthay Circle, they doubled her portion on the kids menu but charged us for an adult meal (of a somewhat equivalent meal), they also did this at the Blue Bayou. When we went to Wine Country Trattoria they charged us for 2 kid meals. I'm not sure if there is a set way to handle it at each restaurant or if it just depends on the wait staff at the time.