Hotel Dining Published: 16/10/2009 at 12:00 AM Newspaper section: Realtime Sukhumvit Ambassador Bangkok (02-254-0444) - Oct 16-26: Hong Teh offers a la carte vegetarian menu and vegetarian dim sum buffet at 359 baht for lunch or dinner. Am Cafe features a vegetarian food corner in international buffet lunch at 399 baht. ----- Grand Millennium Sukhumvit (02-204-4000) - Oct: Terra Roku features s..