Preheat the oven to 350°F (175°C) if using cookie dough.
Prepare the cookie dough by mixing the softened butter, granulated sugar, and brown sugar until creamy.
Add the egg and vanilla extract to the creamed mixture, beating until fully combined.
Gradually mix in the flour until just combined; do not overmix.
If using pre-made cookie dough, shape it into small discs on a baking sheet.
Bake the cookies for 8-10 minutes until golden brown at the edges.
While the cookies cool, prepare the cheesecake filling by beating together softened cream cheese, powdered sugar, and lemon juice until smooth.
Once cooled, gently mold the cookie shells into taco shapes.
Fill each taco shell with the cheesecake filling using a piping bag or spoon.
Add your choice of toppings before serving.