I vote pizzas, and a salad bar with different toppings:
dressings [ranch, thousand island, and a vinaigrette], croutons, slivered candied almonds/sunflower seeds, cheese [feta, cheddar, Parmesan], fruit [dried cherries, mandarin oranges] meat [deli ham cut into thin strips, chicken] and veggies [onion, tomato, cucumber, julienne-cut bell peppers, sugar snap peas].......
and also a fruit bowl. Something for everyone that way... and part junk, part healthy. Yummy!
I do like the pasta bar idea though...macaroni, fettuccine alfredo, and lasagna would be good. Add italian salad, and good garlic bread/breadsticks and it would be a great meal.