01 - Process chocolate sandwich cookies in a food processor until finely ground. Transfer crumbs to a separate bowl and set aside.
02 - Beat softened cream cheese and butter in a large mixing bowl until smooth and creamy. Add powdered sugar and mix until fully incorporated.
03 - Whisk instant vanilla pudding mix with cold milk in a separate bowl. Let stand for 2 minutes until mixture thickens to pudding consistency.
04 - Fold prepared pudding into cream cheese mixture until smooth. Gently fold in whipped topping until completely blended.
05 - Spread half the cookie crumbs evenly across the bottom of a 9x13-inch casserole dish, pressing lightly to create a compact base.
06 - Spoon cream mixture over cookie crust layer, smoothing the top with a spatula to create an even surface.
07 - Sprinkle remaining cookie crumbs over cream layer to create a uniform dirt-like topping.
08 - Arrange gummy worms partially buried in the crumbs. Add candy eggs and green coconut if using. Cover and refrigerate at least 2 hours before serving.