Place the chocolate chips in a microwave safe dish and heat in the microwave until melted. Stir every 20 seconds to prevent burning. Set aside to cool.
In a small bowl, combine the cocoa powder and Greek yogurt. Mix well.
Add the melted chocolate chips once they have cooled. Combine with the Greek yogurt. Beat with an electric mixer for 2 minutes to add air an increase the fluff.
Serve chilled. Garnish with whipped cream, strawberries or chocolate chips.