Preheat oven to 350°F and grease an 8x8 inch baking pan.
In a large bowl, mix applesauce, banana, honey, and vanilla until smooth.
Stir in cocoa powder, baking soda, and salt until combined.
Fold in flour gently, then add chocolate chips.
Pour batter into the pan and spread evenly.
Bake for 25-30 minutes or until a toothpick comes out clean in the center.
Cool before slicing into squares.