Just attended a private leaving do for the chairman of Glencore in Zug, Switzerland. A catered buffet at the Glencore HQ. Very nice. Not much I could eat apart from the strawberry tarts and the gazpacho but as I was walking out of the marquee area I saw a tent and a sign saying ' koscher buffet '. They had very kindly laid on a kosher buffet for observant Jewish employees ( and for others ) with roast beef sandwiches, duck with lentils, chicken slices. Very nice and catered by Restaurant Topas in Basel.... a kosher restaurant I had never heard of but will try next time I'm in Basel
http://www.restaurant-topas.ch/english/index_e.html
