I'm assuming you want easy grabs for this crowd. Usually when I feed an army, I go with a nice crudite platter, the usual carrots, celery, ect...and throw in some raw asparagus spears, endive and spears of raw red beets are delicious too. Offer 3 or 4 dips and some sliced baguette.
I am forced to bring the BLT dip to all family functions now. Its pretty trashy sounding, but it is gone so fast you won't believe it! You basically mix 1/2 mayo and 1/2 sour cream, then throw in a bunch of fresh diced tomatoes and hormel bacon bits from the bag. Don't try using fresh bacon bits, it doesn't work...you have to use the pre fab ones! Serve it in a hollowed 1/2 iceburg lettuce head or giant romaine leaf...with pita bread, baquette slices or even pita chips.
My second and even faster disappearing *more trashy* party snack would be the veggie pizza. Its really good....and colorful..and BAD for you....LOL. You get a few things of the pillsbury crescent rolls. Spray a cookie sheet and just unroll them, but don't seperate them. You want to cover the cookie sheet, as if you where making a big pizza crust. Bake this in the oven until its golden and done. Let it cool to room temp. Make a spread of 1 part cream cheese, 1 part sour cream, 1 part ranch dressing. Mix it up and spread it genourosly over your crust. Now you can sprinkle the top with slivered raw veggies. I like carrots, red bell pepper and finely chopped broccolli. You'll want to gently press it down with your hands, so it sticks. You can dust the top with a bit of grated cheddar...then cut it into squares with a pizza cutter.
I am loving this thread....always trying to figure out new partyables!