Using refridgerated pizza dough from the grocery store (yes, making your own is "easy" but extra work), we made ghost shaped pizzas with olives & mini meatballs (made for dinner earlier in the week) for the spooky faces. Big hit with the boys! Plus, we got a school lunch out of it too!
Here is the lunch I packed. Ghost pizza and an orange bell pepper cut to look like a jack-o-lantern: