Preheat oven to 350°. Combine ricotta cheese, 1-1/2 cups mozzarella cheese and egg in medium bowl; set aside.
Toss hot penne with Sauce in large bowl. Stir in cheese mixture. Turn into 11 x 7-inch baking dish, then sprinkle with remaining 1/2 cup mozzarella cheese, bread crumbs and Parmesan cheese.
Bake covered 25 minutes. Remove cover and bake until bread crumbs are golden brown and cheese is melted, about 5 minutes.
Cost per recipe*: $9.89
Cost per serving*: $2.47
*Based on average retail prices at national supermarkets.