Begin by preheating the oven to 350*. Also, be sure that your puff pastry sheets are unrolled and thawed out.
Next, cut out your shapes using the cookie cutters and place them on a greased cookie sheet. I was able to make 6 pizzas with large Halloween cookie cutters. You may need to roll out the excess dough to make more.
Once they are on the cookie sheet, top them with the pizza sauce, pepperoni and cheese.
Now, take the other pastry shell and cut out the same shapes, then place the matching shape on top of the prepared pizza. Use a fork to seal around the edges.
Bake these at 350* for 10-15 minutes or until nice and brown on top.