Preheat your oven according to the cinnamon bun package instructions, often 350.
Place the Oreos into a food processor and pulse until small chunks form. You could also place in a bag and crush them with a can or rough chop them with a chef's knife.
Open the cinnamon buns and place them on a cooking tray.
Gently open up the tops of each cinnamon bun and carefully press about 1 Oreo into spaces between the layers.
Cover the pan with aluminum foil and bake for about 10 minutes or 2/3s of the total bake time mentioned on package.
Remove the aluminum foil and continue baking for about 5 more minutes or until they turn golden brown.
Carefully take the cinnamon buns out of the oven.
Allow to cool for a few minutes and then top with the provided frosting, more oreos, and any other topping you like before serving.