Preheat the oven to 350 degrees.
Use a food processor to finely grind the oats into a flour consistency.
Combine ground and whole oats, protein powder, baking soda, and salt in a small bowl. Set aside.
In a large mixing bowl, cream the softened butter and sugar.
Add egg and vanilla to the mixing bowl, mix until combined.
Slowly incorporate the dry ingredients into the mixing bowl.
Stir in the chocolate chips by hand.
Scoop the cookies into small balls on a cookie sheet lined with parchment paper/baking mat.
Pat the cookies down by hand so they are fairly spread. Top with a couple of peanut butter chips if desired.
Bake for 8-10 minutes, until golden brown.
Let cool for about 10 minutes.