Place 1 1/4 cup chocolate chips and 1 cup pumpkin into a food processor. (Reserve the rest of the chocolate chips and pumpkin for the topping.)
Add all the rest of the ingredients except topping ingredients and process until smooth and no lumps.
Spread the batter evenly into the baking dish.
In a stand mixer add the reserved 1/2 cup pumpkin, cream cheese and cinnamon stevia and blend until smooth.
Spread over the brownie batter in the pan. Sprinkle the remaining 1/4 cup chocolate chips over the cream cheese topping.
Bake 40-45 minutes or until a toothpick in center comes out clean.
Allow to cool 15-20 minutes before slicing.
Notes
I used Lily's Sugar-Free Chocolate Chips. You can use another flavor of liquid stevia if you prefer, perhaps chocolate or vanilla. You can also leave out the stevia and add another sweetener of choice that equals about 3/4 cup of sugar.