Preheat oven to 500°F

Add oil to frying pan and cook sausage until slightly browned.

Add 1/2 of the onion and all garlic, and cook until sausage in done. Set aside.

Flour a workable surface and using a rolling pin, roll the dough into a 16 inch circle

Slightly oil a deep dish cake pan, and place the pizza dough over the top, forming the dough to the pan

Add cup and 1/2 of the mozzarella cheese as first layer and sprinkle oregano on top

Layer the pepperoni covering the cheese

Layer the mushrooms and the rest of the onion

Add half if the remaining cheese

Layer the sausage, onion, garlic mixture next

Add the drained and crushed tomatoes as the next layer

Add the pizza sauce and form an even layer with the back of a spoon

Remove the excess dough with a knife and sprinkle with remaining cheese

Reduce oven temperature to 425°F and place pizza on middle rack

Bake pizza for approximately 20 to 25 minutes or until exposed crust is brown

Remove pizza and let cool slightly to set up. Enjoy.

Adjust the ingredients however you want. I used a cake pan with the removable ring. It makes it easier to cut and remove the pizza