I say go with a Mexican theam. If you put out all of the ingredients then everyone can make thier own and its fun. Its a lot of bowls but not too much cooking and always a hit!! Our typical list includes: ground beef, grilled cut chicken, rice, refried beans, black beans, lettuce, shredded cheese, salsa, sour cream, guacamole diced tomatoes, corn, cucumbers, etc. Provide tortillias, taco shells and chips- you have an instant party! Sometimes I use lardge divided fruit trays to serve the cold items and it looks pretty. Good luck.