Preheat oven to 400°F and line a baking sheet with parchment paper.
Roll out the puff pastry on a lightly floured surface and cut into 6 equal rectangles.
Transfer the pastry rectangles to the prepared baking sheet, spacing them slightly apart.
Lightly score a border around each rectangle (about 1/2 inch from the edges), being careful not to cut through.
Mix cream cheese, sugar, and vanilla extract in a bowl until smooth.
Spread a thin layer of cream cheese mixture inside the scored border of each pastry.
Spoon a small amount of strawberry jam over the cream cheese.
Arrange fresh strawberry slices on top.
Mix the egg and milk in a small bowl, then brush the edges of the pastry with the egg wash.
Sprinkle turbinado sugar over the edges for a golden, crunchy finish.
Bake for 15-18 minutes or until golden brown and puffed.
Let pastries cool slightly while preparing the glaze.
Mix powdered sugar, milk, and vanilla extract in a bowl until smooth.
Transfer glaze to a small zip-top bag, snip the corner, and drizzle over the pastries.
Serve warm and enjoy!