Caramel Apple Trifle Parfaits

Prepare cake mix according to package directions using the 13x9x2-inch pan option. Cool cake completely in pan on a wire rack. Cut half of the cake into 1-inch cubes (you should have 8 cups). Set aside. Reserve remaining cake for another use. In a large mixing bowl beat cream cheese with an electric mixer on medium speed until light and fluffy. Slowly add ice cream topping, beating on low speed until just combined. In a medium mixing bowl beat whipping cream until stiff peaks form. Fold whipped cream into cream cheese mixture. In each of eight 14-ounce stemmed glasses or tumblers, spoon 2 rounded tablespoons of whipped cream mixture. Top with 1/2 cup cake cubes. Top with 2 rounded tablespoons whipped cream mixture. Top with 1/4 cup apple pie filling. Sprinkle walnuts and raisins, if using, over pie filling. Top with 1/2 cup cake cubes and remaining whipped cream mixture. If desired, sprinkle with additional chopped walnuts and raisins. Serve immediately or cover and chill for up to 4 hours.