There are numerous questions where to have such an event, so here is one possibility. Cafe-Ha-Rova is a "cafe" style place but also have full meals. It is on 11 Tife'et Israel St. in the Jewish Quarter. The place is not remarkable but is on a perfect location. Close to the entance to the Kotel from the Jewish Quarter and on the second and third floor of a building overlooking to the east. The view is outstanding. The third floor is mostly for these kind of events, just remember that the decor of the Cafe is very basic. No fax or email, phone number 02-6261336, open till 1900. I had there latkes and coffee that were very good.