Begin by making the dough. Allow to rest for about an hr.
Preheat oven to 450°F.
Roll out dough and place in deep dish pie dish. With a knife, cut around the edges as shown above. With a knife for pizza pitter, poke holes into the dough.
Bake for about 8 minutes.
Cut up about 8 frozen meatballs in half and place in pan with 1 cup of sauce on stove. Simmer for about 5 minutes.
Remove crust from oven and add in meatballs and sauce. Then add fresh mozzarella, cut mushrooms and shredded cheese.
Make egg wash with 1 egg and 1 TBS of water. Brush around the edges of the crust and sprinkle with Parmesan cheese and Italian seasoning.
Place in oven and bake for 12-15 minute.
Remove from oven and allow to cool for at least 8-10 minutes before cutting pizza.