Preheat oven to 350°F and lightly grease two oven-safe ramekins.
Mix the pumpkin, egg, Greek yogurt, maple syrup, and vanilla until smooth.
Stir in the protein powder, oat flour, pumpkin pie spice, baking powder, and salt.
Fold in the chocolate chips and divide the batter between the ramekins.
Bake for 14–17 minutes, until the edges are set and the centers are just cooked through.
Let cool for 5 minutes before digging in!
