Preheat oven according to package instructions on pizza dough.
Lightly flour a work surface. Split dough in half and roll out pizza dough so it will lay over the top of the bowls with a 1” edge hanging off all around. Place dough on top of bowl and bake according to package instructions.
While dough is baking, heat oil in a large saute pan over medium heat. Add sausage and cook until slightly browned, about 5 minutes.
Add onion and mushrooms and continue cooking another 3-5 minutes. Remove from heat and add Dei Fratelli Pizza Sauce. Mix well.
When dough is done baking, allow to cool and invert. Fill each dough evenly with sausage mixture. Pinwheel 4 slices of muenster cheese over each one and bake for another 10 minutes, or until cheese is melted and golden brown.
Use any kind of ingredients you wish to make this pizza pot pie your own!