Preheat oven to 350°F (176°C).

Combine the crushed frosted flakes with the melted butter in a small bowl.

Press the mixture into a lightly greased pie baking dish.

Bake for 10 minutes then cool completely.

Use the tines of a fork to mash the cranberry sauce to break apart then transfer it to a mixing bowl; add the cream cheese and use a hand mixer to combine. Fold in the whipped topping then transfer the filling to the pie crust.

Use a spatula to spread the filling in the pie dish then place the pie into the freezer until ready to serve.

Remove the pie from the freezer 20 minutes before serving.