Dirt Pie                

Ingredients
1 cup cold milk
1 (4 ounce package) chocolate flavor instant pudding
1 (8 ounce) container cool whip
20 chocolate sandwich cookies; crushed
1½ cups rocks (granola chunks, chocolate chips, peanut butter chips, chopped peanuts, or any combination of the above)
1 graham cracker pie crust

Method :

Measure milk into a medium size bowl, add pudding mix, beat with a wire whisk until thoroughly blended.
Let the pudding sit for at least five minutes to thicken and fold in whipped topping.

Stir one cup of the cookies and rocks ( whatever you choose ) and pile into the graham cracker crust.
Sprinkle with the remaining cookies, freeze until firm ( about 4 hours )