Melt the dark chocolate using a double boiler.
Mix the cheese and Greek yogurt evenly.
Mash the cooked kidney beans finely, then add them to the cheese mixture and mix well.
Add unsweetened cocoa powder and combine until it forms a dough.
Shape the mixture into small bars.
Bake at 180°C (356°F) for 15 minutes in the oven.
Let cool completely before serving.