Scoop 1 1⁄2 pints of the mint chocolate chip ice cream into the chocolate cookie pie crust and spread until smooth. Sprinkle with 1 cup of the crushed cookies and press so they stick to the ice cream.
Bakers and confectioners have long known the magic of chocolate combined with mint: Milano Mint Chocolate cookies from Pepperidge Farm, the Girl Scouts' Thin Mints, and Andes Creme de Menthe Thins.