Preheat oven to 450°
Shape pizza dough ball into a large circle on a lightly floured surface. (Dough doesn't have to be perfectly round. You can also shape dough and place in a rectangular baking sheet.)
Place dough on a piece of parchment paper. Fold up edges of dough, forming a 1-inch border. Brush olive oil evenly over dough.
Cover pizza dough, loosely with plastic wrap. Let rise in a warm place for 15 to 20 minutes.
Heat pizza stone or heavy baking sheet 10 to 12 minutes in oven. Remove and discard plastic wrap from dough. Spread jarred pizza sauce on pizza dough with the back of a large spoon. Place teaspoon size pieces of Italian sausage on top of sauce.
In a medium bowl, mix together shredded cheese and Parmesan cheese. Sprinkle cheese mixture evenly over pizza. Carefully transfer dough on parchment paper to pizza stone or baking sheet.
Bake at 450° for 10 to 12 minutes or until crust is golden brown and cheese is melted.