Banana-Oatmeal Muffins

Preheat oven to 425°.

Lightly spoon flour into a dry measuring cup; level with a knife. Combine flour, oats, and next 4 ingredients in a bowl; stir well.

Combine egg and next 5 ingredients; stir well with a whisk. Add to flour mixture, stirring just until moist.

Spoon batter into 12 muffin cups coated with cooking spray. Sprinkle batter evenly with cinnamon-sugar.

Bake at 425° for 18 minutes or until muffins spring back when touched lightly in center.

Remove muffins from pan immediately; place on a wire rack.