In a large bowl add egg whites, melted coconut oil, greek yogurt, milk, and vanilla. With a hand-held mixer, mix for 60 seconds or until everything is well incorporated and combined.
To the bowl add in Kodiak Cakes Power Cakes Dark Chocolate Flapjack & Waffle Mix, brown sugar, salt, baking soda, baking powder, and espresso powder. Mix until just combined. The batter will be very thick.
Shred 1 medium zucchini with a cheese grater on the largest hole to get 1 cup of shredded zucchini.
Add in shredded zucchini and dark chocolate chips and fold into the batter with a rubber spatula until everything is combined.
Pour the batter into a greased loaf dish and place it in the oven for 55-60 minutes. Check to see the doneness by sticking a toothpick in the middle of the bread. If it comes out clean it is finished, if not bake for another 5 minutes until so.
Remove from the oven and let cool in the pan for 10 minutes. Run a knife along the edges of the bread and pan to help release it from the sides and flip upside down to release from the pan onto a cooling rack. Let cool completely then slice and enjoy!