We had lunch yesterday at Gansu-Shabuway in Power Plant Mall:
The menu only serves vegetables and beef (Meyer and Kobe beef), with two kinds of soup (seaweed and spicy miso). The seaweed broth was bland, but I loved it when I mixed it with tons of sesame sauce
... along with a dash of minced garlic, minced radish, and chopped onion leeks :D
Our family agrees that you can just order their normal Meyer beef since you really can't tell the difference when cooked in shabu-shabu style.
The broth is, of course, unlimited... along with their rice. Here's how my meal was: rice, cooked beef in their soy sauce/vinegar dipping, and broth mixed with sesame sauce ;P
Menu is quite limited, which makes ordering simple and fast. Ramen and udon noodles are also available, which we ordered for our son---who wiped out his bowl of noodles fast!