Cook sausage in frying pan; drain well. In a large bowl, combine the sausage, mozzarella, Parmesan, egg and egg white; mix well. Add the parsley, oregano and salt and pepper, to taste. Set aside. On a lightly floured surface, roll the dough into a circle. Spread the sausage mixture on top to within 1" of edge. Roll up like a jelly roll, pinch the edge well; place on cookie sheet. Brush top lightly with beaten egg yolk. Bake at 350 degrees F for 45 minutes or until golden brown. Set on wire rack to cool slightly. Serve warm or at room temperature.
Per Serving: 611 Calories (kcal); 45g Fat (18g Sat, 19g Mono, 5g Poly); 23g Protein; 26g Carbohydrate; trace Dietary Fiber; 140mg Cholesterol; 931mg Sodium. Food Exchanges: 1 1/2 Grain (Starch); 3 Lean Meat; 7 1/2 Fat.