1Heat oven to 350°F. Spray 9-inch square pan with cooking spray.
2In medium bowl, beat banana with electric mixer on medium speed until pureed. Add Bisquick mix, protein powder, egg and syrup; beat until well combined. Stir in chocolate chips and half of the pecan chips. Spread in pan. Sprinkle with remaining pecan chips.
3Bake 18 to 25 minutes or just until center is set. Cool completely in pan on cooling rack, at least 30 minutes. Cut into 3 rows by 3 rows. Remove bars to cooling rack or plate.
4Spoon frosting into small resealable freezer plastic bag; microwave on High 10 to 15 seconds. Cut off tiny corner of bag; squeeze bag to drizzle frosting over bars. Gently press 2 dried banana chips on top of each bar.