Breakfast or Lunch Buffet in Tokyo/Yokohama area
We'd like to get recs for a great breakfast buffet (preferably breakfast, but also open to lunch) in Tokyo/Yokohama area. What we're looking for is probably going to be in a hotel, since we like to enjoy Western (cereal, yogurt, pastries), lots of fruits & salad, and Japanese all at once. It'd be a major plus if the place features some Chinese items (noodle bar, few dim sum items) on top of all that... but that might be asking too much.
We've had some amazing breakfast buffets in Hong Kong's 5-star hotels. I'm wondering if there's anything like that in Tokyo.