Whoa!!! Chinese immersion? That is AWESOME!!! You should definitely let your daughter hang out at the Chinese Kidcot station and talk with the sweet young Chinese gals who are working there. She could probably walk around the gift shops and talk with some CM's there, too! I think you would enjoy a meal there as long as you're not expecting something super exciting and different. Unlike your average Chinese restaurant at home, this one will be staffed with real Chinese servers...so in your case that's a huge difference.
Tusker for dinner...if you don't have a car, would you be opposed to a five minute bus ride over to AKL? I would much rather see you dine at Boma for a good use of your dining credit. First of all, AKL is a destination in itself! Secondly, Boma is the Tusker buffet but on steroids. The other AKL option (1 dining credit) is Sanaa--but it has more of an Indian influence as opposed to Boma's African inspiration.
Mama Melrose...well, we have been to all the DHS eateries many, many times and well, we just don't do them for the most part. But, we have a car, so that makes getting around a bit easier for us. If I had to eat in DHS, only wanted to use one dining credit and had children the ages of yours I would probably go to 50's Prime Time. It can be pretty fun and the food's pretty good. If you do have a car other popular spots with kids the ages of yours would be WCC in the WL. It's a wild west kind of cowboy dinner. For a more upscale experience we like the Wave at the CR. For some yummy Hawaiian tasting food we like to dine at Kona Cafe in the Poly.
Yes, CRT is in the castle. Yep...you need to go there!