smorgasbord; all-you-can-eat buffet
Refers to a buffet-style meal with a wide variety of dishes, often associated with hotel restaurants or special events. The term derives from the 'Viking' brand of smorgasbord popularized in Japan.
See also: バイキング
I ate a lot of my favorite things at the hotel's buffet.
On the weekend, the family enjoyed an all-you-can-eat buffet.