Creating the Easter Dirt Cake Casserole is simple if you follow these steps:

1. Crush the Cookies: Place the chocolate sandwich cookies in a food processor and pulse until they are finely crushed. Set aside.

2. Prepare the Cream Cheese Layer: In a large bowl, beat the softened cream cheese with an electric mixer until creamy. Gradually add the powdered sugar and vanilla extract, beating until smooth.

3. Add Whipped Topping: Fold in the whipped topping until combined. Ensure there are no lumps in this layer; it should be smooth and creamy.

4. Mix the Pudding: In another bowl, whisk the milk and instant chocolate pudding mix together until it starts to thicken, about 2 minutes.

5. Combine Layers: Layer half of the cookie crumbs at the bottom of a large serving dish or casserole pan. Spread half of the cream cheese mixture on top of the cookie layer. Then, pour half of the pudding mixture over the cream cheese layer.

6. Repeat Layers: Add another layer of cookie crumbs, followed by the remaining cream cheese mixture. Finish with the remaining pudding mixture on top.

7. Chill: Cover the casserole with plastic wrap and refrigerate for at least three hours or until fully set.

8. Decorate: Once chilled, top the casserole with the remaining crushed cookie crumbs, making it look like dirt. Add gummy worms on top and, if desired, a few drops of green food coloring in the whipped topping to create a grassy effect.

9. Serve: Gently remove the casserole from the fridge. Serve it chilled, inviting your guests to dig in and enjoy!