Pastry of your choice
1 1/2 lbs. hot Italian sausage
1 tbsp. salad oil
3 eggs
1 1/2 lbs. (3 c.) Ricotta cheese
1/2 lb. Mozzarella cheese, cut into 1/4 inch cubes
1/4 c. Parmesan cheese
8 slices Prosciutto ham, coarsely chopped (1/4 lb.)
1/4 c. chopped parsley
1/2 tsp. salt
Dash black pepper
1 egg yolk

Prepare pastry, preheat oven to 400 degrees. Lightly grease a 10 inch pan (and flour) or pie plate. Slice sausages 1/4 inch thick. In hot oil in medium skillet, saute until lightly browned on all sides. Drain excess fast. In large bowl, beat eggs until well blended. Add Ricotta, Mozzarella and Parmesan cheese, along with Prosciutto, parsley, salt, pepper and sausage. Mix well. Fit pastry into pan. Trim edges. Turn filling into bottom crust, place top of pastry. Brush with egg yolk beaten with 1 tablespoon water. Bake 35 to 40 minutes or until crust is golden.