1Mix graham crackers, butter, and white sugar together in a bowl; press mixture into the bottom of a 9x13-inch baking dish. Chill crust until firm, about 1 hour.
2Beat cream cheese and confectioners' sugar together in a bowl until light and fluffy, 2 to 3 minutes. Fold in whipped topping.
3Spread cream cheese mixture evenly onto crust; top with blueberry pie filling. Chill until firm, 4 hours or overnight.
Footnotes
Tip
Parchment can be used for easier cleanup/removal from the pan.