Mash the bananas.
Mix together oatmeal, cocoa powder, baking powder, and salt.
Add protein powder and honey (or maple syrup) to the mashed bananas and mix well.
Combine the dry ingredients with the wet ingredients and mix thoroughly.
Add chocolate chips to complete the dough.
Shape the dough into rounds and place them on a baking sheet.
Bake in a preheated oven at 180°C (356°F) for 12-15 minutes, then let cool.