Mine are nothing fancy. I usually try to go with something that has an easy prep that can be done way in advance and can serve a lot of people. The easiest one, and one that gets the most praise, is my taco bar. I'll make taco meat and keep it warm in the crock pot, have a mini crock pot of refried beans, and a mini crock pot of velveeta / rotel dip. I'll have tortillas in the tortilla warmer and taco shells. Then, I can make a buffet of onions, tomatoes, lettuce, cheese, sour cream, taco sauce, etc. to build your own taco. I also have tortilla chips, salsa, and guacamole as appetizers. What I love about this, is that everything can be done ahead of time and kept warm. I have tried mexican rice too, but I can't seem to find a recipe I really like yet. You could probably do the same thing with fajitas.