Heat oven to 400. Paper line or grease a 12 muffin tin.
Beat bananas, oil, egg and sugar in large bowl until well blended. Stir in baking mix, nuts, and chocolate chips just until baking mix is moistened (batter will be lumpy). Divide batter into muffin tin.
Bake about 15 minutes or until golden brown. Cool muffins in pan 5 minutes; remove from pan to wire rack. Serve warm {and with milk please} 😉