Set aside 1 tablespoon of protein shake for later. Add the protein shake and pudding mix to the Ninja Creami pint and whisk together.
1 11.5oz Protein shake, 1 tablespoon Oreo pudding mix
Cover the pint, place in the freezer, and freeze for 24 hours.
Place the frozen pint in the Ninja Creami, then run the "Lite Ice Cream" cycle.
After the first spin, add the remaining tablespoon of protein shake (or use another liquid, like milk or cream) and run the "Re-Spin" cycle 1-2 times until ice cream is creamy.
Create a well in the center of the ice cream, down to the bottom. Break the Oreo thins in half, then add them to the well in the ice cream. Return to Ninja Creami and run the Mix-In cycle.