The Genji Japanese restaurant has an amazing buffet or ala cart dishes like shabu-shabu (our 6 year-old even tried and liked sushi!). The staff is meticulous in the service, and they even thought about our kids (3 and 6), and gave them origami butterfly toys on our way out of the restaurant.
The dinner buffet served on Sunday evenings (I think it's Sunday evening) was nothing short of amazing! Everything from sushi, salads, barbecued meats, udon, salads to dessert. There is definitely something for everyone on this buffet!