Lightly grease the bottom of a 9-inch springform pan with baking spray. Set aside.
In a food processor, blend the sliced almonds with graham crackers and granulated sugar until fine crumbs form.
Slowly add melted butter and mix until crumbly. Press the crust mixture firmly into the bottom of the prepared springform pan and up the sides slightly. Set aside.
In a large mixing bowl, beat cream cheese with sugar until light and fluffy, scraping down sides as needed.
Add heavy whipping cream and almond extract. Beat for an additional 2-3 minutes. Pour cheesecake filling onto prepared crust.
Carefully spoon the entire can of blueberry pie filling onto the top of the cheesecake layer. Save any leftover filling for another use if desired.
Top the cheesecake with whipped topping. Optionally pipe some swirls on top. Sprinkle with sliced almonds.
Refrigerate the entire cake for at least 3 hours or overnight. Release springform pan before slicing and serve.
Notes
This no bake blueberry cheesecake is perfect for warm weather and holidays. For best texture, chill overnight.