Cut dough sheet in half.
Drape dough into skull cavity in pan.
Fill with 1 1/2 tablespoons of sauce, pizza toppings, and 1/4 cup of shredded mozzarella cheese.
Cut off the excess dough, pinch together the seams.
Brush egg wash over top of dough.
Repeat creating 4 skulls.
Refrigerate for 30 minutes.
Pre-heat your oven to 375 degrees Fahrenheit.
Bake for 18-20 minutes until the crust looks cooked through and golden brown.
Remove skulls from pan and serve.