Preheat oven to 350°F. Lightly spray 10 small ramekins, 4 to 6 ounces in size, with cooking spray.
In a large bowl, whisk together pumpkin puree, milk, honey until well combined.
In a smaller bowl, combine cocoa powder, protein powder, collagen (if using), walnuts (if using), oats and baking powder. Add to wet mixture and stir well.
Spoon half the oatmeal mixture into the ramekins and place 1 piece of chocolate on top. Top with the remaining oat mixture. Place the ramekins in the oven and bake for 20 to 30 minutes. (or microwave for 2-3 minutes or until it is relatively firm to the touch)
Serve immediately
When the oatmeal is baked, let cool for 5 minutes, then enjoy! I like to add a bit more chocolate to the top as it cools to make it extra gooey!!