1 c. cold milk
1 pkg. chocolate flavor instant pudding (4 serving size)
3 1/2 c. Cool Whip
20 chocolate sandwich cookies, crushed
1 1/2 c. rocks (granola chunks, chocolate chips, peanut butter chips, chopped peanuts or any combination)
1 graham cracker pie crust

Pour milk into medium bowl. Add pudding mix. Beat with wire whisk until well blended (1 to 2 minutes). Let stand 5 minutes. Fold in cool Whip. Stir 1 cup of the cookies and rocks into pudding mixture. Spoon into pie crust. Sprinkle with remaining cookies. Freeze until firm, about 4 hours.