1Spray 8-inch square pan with cooking spray or line with nonstick foil. In small bowl, mix crumbs, sugar and melted butter until crumbly. Press in bottom of pan. Freeze 10 minutes.
2Meanwhile, in medium bowl, beat pudding mix, yogurt and milk with electric mixer on low speed about 1 minute until smooth. Fold in whipped topping. Stir in bananas. Spread mixture evenly over crust. Cover and freeze at least 3 hours or until firm.
3Remove from freezer and let stand 10 to 15 minutes before serving. For squares, cut into 3 rows by 3 rows. Top each square with about 1 teaspoon caramel topping. Store covered in freezer.