Banana Chocolate Meal-in-a-Muffin

cooking spray

4 bananas, mashed

¼ cup brown sugar

2 eggs

2 tablespoons olive oil

2 teaspoons vanilla extract

2 ½ cups whole wheat flour

¼ cup cocoa powder

1 teaspoon baking powder

1 teaspoon ground cinnamon

¼ cup chocolate chips

¼ cup chopped walnuts

Preheat oven to 350 degrees F (175 degrees C). Spray a 12-cup muffin tin with cooking spray.

Mix mashed bananas and brown sugar together in a large bowl. Add eggs, olive oil, and vanilla extract; mix well.

Mix flour, cocoa powder, baking powder, and cinnamon in a separate bowl. Stir banana mixture into flour mixture. Fold chocolate chips and walnuts into batter. Distribute batter into the muffin cups.

Bake in the preheated oven until a toothpick inserted in the center of a muffin comes out clean, 35 to 40 minutes.