Preheat oven to 350 degrees F. Line an 8x8 pan with foil.
In a food processor, combine all ingredients for the crust. Pulse food processor until all ingredients come together and start to form a dough.
In a blender, blend together berries until you have a sauce. Push sauce through a fine-mesh strainer into a small bowl to separate the seeds.
In the bowl of a mixer, combine softened cream cheese, berry sauce, and greek yogurt until smooth. Add sugar, vanilla extract, and whole wheat flour. Mix until just combined. Add the 2 egg whites and mix until completely incorporated.
Stir in the 3/4 cup of dark chocolate chips.
Pour cheesecake mixture over the crust and bake for about 20-24 minutes, or until middle of cheesecake has set.
Place the remaining 1/4 cup of chocolate chips on top of the cheesecake as soon as it comes out of the oven.
Let cool to room temperature on a cooling rack and continue to cool in the refrigerator for at least another 2-3 hours.