Ingredients:
½ cup (125 mL) softened butter
½ cup (125 mL) brown sugar
½ cup (125 mL) granulated sugar 
1 egg 
1 tsp (5mL) pure vanilla extract 
1 cup (250mL) all purpose lour 
1 cup (250mL) large flake oats 
½ cup (125mL) whole wheat flour 
1 tsp (5mL) baking soda 
2 cups (500mL) semi-sweet chocolate chips 
2 bananas, sliced 

Method:
Preheat oven to 350°F (180°C).
Line baking sheet with parchment paper.
Cream butter, sugar and brown sugar together in a stand mixer, or with a hand blender. Add egg and vanilla and mix until blended.
In a separate bowl mix flours, oats, and baking soda. On low speed, add the flour mixture and mix until incorporated. Mix in chocolate chips. Add cut bananas and mix on low just until they are evenly distributed and some of the banana is mashed up.
Drop 2 tbsp (30mL) dough on prepared baking sheets, about 2” (5cm) apart.
Bake in preheated oven 20 minutes until the edges are lightly browned. Cool cookies on baking sheet for 5 minutes, then transfer to a cooling rack.
Makes about 36 cookies - of course this varies depending on how large you make them.