01 - Preheat oven to 350°F. Grease a 9x9-inch baking dish with butter or cooking spray.
02 - In a medium bowl, combine flour, melted butter, chopped pecans, sugar, and salt. Mix until crumbly and press mixture firmly into the bottom of the prepared baking dish.
03 - Bake crust for 18-20 minutes until lightly golden. Remove from oven and let cool completely before adding filling.
04 - Beat softened cream cheese and powdered sugar in a large bowl until smooth and creamy. Stir in vanilla extract.
05 - In a separate chilled bowl, whip cold heavy cream using an electric mixer until stiff peaks form.
06 - Gently fold whipped cream into the cream cheese mixture until fully incorporated and no streaks remain.
07 - Spread the cream cheese filling evenly over the completely cooled crust using an offset spatula.
08 - Combine blueberries, sugar, cornstarch, lemon juice, water, and lemon zest in a saucepan. Cook over medium heat, stirring frequently, until mixture thickens and becomes glossy, approximately 6-8 minutes.
09 - Remove blueberry mixture from heat and let cool to room temperature. Carefully spread over the cream cheese layer.
10 - Cover dish and refrigerate for at least 1 hour to set layers properly and allow flavors to meld.