Whats your main food item???
lol Im lazy- Im all about buying trays :) We did these pita sandwiches from Albertsons and they were great. Or the pinwheels. More like "food" then an appetizer.
An easy side to make (b/c you can make a big bowl AND also best the day before which is easier anyway) is pasta salad.
We did the jelly/sweet crockpot meatballs at my shower too.
You can also do some sliced bread & bruchetta (sp?) (practically don't have to do anything lol)
Fruit bowl OR "fruit skewers" it you want to change it up and make it more presentable.
Check out Costco too- they always have yummy stuff for that.