Pizza Rustica

Directions

1. 1
   Preheat oven to 375 degrees F (190 degrees C).
2. 2
   Cook and stir sausage in a large skillet over medium heat until browned, 5 to 8 minutes. Drain.
3. 3
   Mix Parmesan cheese, mozzarella cheese, ricotta cheese, and eggs together in a bowl. Stir in sausage, prosciutto, and parsley.
4. 4
   Roll 1 pie crust into an 11-inch circle on a lightly floured work surface. Transfer to a pie plate, leaving a 1/2-inch overhang. Pierce crust all over with a fork. Spread cheese and sausage mixture over crust. Roll second pie crust into a 12-inch circle; place on top. Seal and flute edges. Cut several slits in the top crust to permit steam to escape.
5. 5
   Bake in the preheated oven until center is set and crust is browned, about 1 hour.