Step 1:
Finely crush Oreos in a food processor. Add all but ¾ cup to a large bowl. Add melted butter to bowl and stir until mixture starts to hold together. Pour mixture into 9”-x-9” baking dish and pack into an even layer.
Step 2:
In a medium bowl, whisk together pudding mix and milk until thickened, then refrigerate for 10 minutes to firm up.
Step 3:
In a large bowl using a hand mixer, beat cream cheese and powdered sugar together until no lumps remain.
Step 4:

In another large bowl, beat cream until stiff peaks form.
Step 5:
Fold pudding into cream cheese mixture, then fold in whipped cream until just combined. Pour mixture over Oreo crust and smooth with an offset spatula. Top with reserved ¾ cup crushed Oreos.
Step 6:
Refrigerate until well chilled, at least 3 hours and up to overnight