Preheat oven to 375 degree F. Grease a 24 cup mini muffin pan with nonstick cooking spray.
Place the banana, applesauce, carrot, yogurt, oil, egg, and vanilla into a medium bowl. Stir together until combined.
Stir in the flour, cinnamon, baking powder, baking soda, and salt. Do not over mix.
Divide the muffin batter evenly among the prepared muffin pan, filling each cup to the edge. Use about 2 tablespoons batter in each mini muffin cup.
Bake for 13-15 minutes or until an inserted toothpick comes out clean or with only a few moist crumbs attached (I do 14 minutes in my oven).
Allow them to cool for a few minutes in the pan, before transferring them to a wire rack to fully cool. Serve or store for later.
