Preheat the oven to 350 degrees F. Grease a 12-count muffin tin.
In a large bowl, add the pumpkin, yogurt, oil, brown sugar, egg, pumpkin pie spice, and vanilla. Whisk until well combined.
Add the flour, protein powder, baking powder, baking soda, and salt. Stir the ingredients until just combined, then add the milk and continue to mix until fully combined. Fold in the chocolate chips.
Pour the batter evenly into each spot in the muffin tin, filling just about completely. Bake for approximately 20 minutes, or until a toothpick pulls out clean. Let cool for a few minutes in the pan, then remove from the pan and allow to finish cooling on a wire rack. Enjoy.
Notes
If you are concerned about macros being as accurate as possible, you can weigh the protein powder rather than measure by volume. Weigh out approximately 48 grams.
If you’d prefer, you can use no-added-sugar chocolate chips rather than dark chocolate chips.
Nutrition analysis (approximate per muffin): 195 calories, 8 g fat, 2 g saturated fat, 165 mg sodium, 26 g carbohydrate, 2.5 g fiber, 14.5 g sugar, 7 g protein, Vitamin D: 1%, Calcium: 7%, Iron: 7%, Potassium: 4%, Vitamin A: 107%