Preheat your oven to 400°F (200°C).
Roll out the thawed puff pastry sheet on a lightly floured surface to create a larger square or rectangle (if needed).
In a mixing bowl, beat the softened cream cheese, sugar, and vanilla extract until smooth and creamy.
Spread the cream cheese mixture evenly over the puff pastry, leaving a border around the edges.
Spoon the cherry pie filling over the cream cheese layer.
If desired, sprinkle sliced almonds on top of the cherry filling.
Gently fold the edges of the puff pastry inward to create a border, pressing lightly to secure the folds.
Transfer the assembled pastry onto a parchment-lined baking sheet.
Bake in the preheated oven for 15-18 minutes or until the pastry turns golden brown and puffs up.