One time we assigned certain groups of people to a classroom. Then each team had to come up with some country that they wanted to the make food (Mexican, French, etc.). And then they were assigned a course (appetizer, dessert, etc.). Then we just together one night and each classroom was decorated like a restaurant. The auditorium was full of tables with lots of stuff to eat, and we had an international supper. Everything from egg rolls to truffles.