Preparation:

Step 1: Make the Oreo Crust

1. Crush the Oreos into fine crumbs using a food processor or by placing them in a zip-top bag and crushing with a rolling pin.
2. In a medium bowl, mix the Oreo crumbs with the melted butter until evenly coated.
3. Press the mixture firmly into the bottom of a 9×13-inch dish to form an even crust. Refrigerate while preparing the other layers.

Step 2: Prepare the Cheesecake Layer

1. In a large mixing bowl, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy.
2. Fold in the whipped topping until fully incorporated.
3. Spread the cheesecake mixture evenly over the chilled Oreo crust.

Step 3: Make the Pudding Layer

1. In another bowl, whisk together the instant chocolate pudding mix and cold milk for about 2 minutes until thickened.
2. Spread the pudding mixture evenly over the cheesecake layer.

Step 4: Add the Topping

1. Spread the remaining whipped topping evenly over the pudding layer.
2. Sprinkle the top with crushed holiday Oreos and festive holiday sprinkles for decoration.

Step 5: Chill and Serve

1. Cover the dish with plastic wrap and refrigerate for at least 4 hours or overnight to allow the layers to set.
2. Slice into squares and serve chilled.