PREPARATION:

1. Preheat oven to 350°F. Lightly grease cookie sheets. Let dough stand at room temperature about 15 minutes.
2. Combine dough, bananas, oats and flour in large bowl; beat until well blended. Drop dough by heaping tablespoonfuls 2 inches apart onto prepared cookie sheets; flatten slightly.
3. Bake 16 to 18 minutes or until edges are brown and centers are set. Cool on cookie sheets 1 minute. Remove to wire racks; cool completely.
4. Place chocolate chips in small resealable food storage bag. Microwave on MEDIUM (50%) 1 minute; knead bag lightly. Microwave and knead at additional 30-second intervals until chocolate is completely melted. Cut off tiny corner of bag. Drizzle melted chocolate over cookies. Let stand until set.