1Heat oven to 350°F (325°F for dark or nonstick pans). Place paper baking cup in each of 24 regular-size muffin cups.
2In large bowl, beat cake mix, pudding mix, milk, oil and eggs with electric mixer on low speed 30 seconds. Beat on medium speed 2 minutes, scraping bowl occasionally. Stir in mashed bananas and 2 cups crushed cookies. Divide batter evenly among muffin cups.
3Bake 25 to 30 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes; remove from pans to cooling racks. Cool completely.
4Frost cupcakes with whipped topping. Sprinkle with 2/3 cup crushed cookies. Top with banana chips.