Picnic Blueberry Cream Cheese Squares

Preheat oven to 350 degrees. Butter the inside of a 9x13 inch baking dish. Stir together graham crumbs, powdered sugar and butter in a medium bowl until evenly moistened. Press the graham mixture evenly into the bottom of the prepared dish. Combine sugar, cream cheese and eggs in a large bowl and beat until smooth. Spread the cream cheese mixture over the crust and bake 20 minutes. Transfer the dish to a rack and cool completely. Stir together lemon juice and pie filling in a medium bowl. Spoon the blueberry topping evenly over the cream cheese. Cover and refrigerate at least 2 hours before cutting into squares and serving.