Prepare an 8-inch baking dish with either nonstick spray or line the pan with foil and spray that with nonstick spray. You could also use parchment paper without spray.
In a large bowl, combine the cookie mix, egg, butter, and pudding mix on low speed using a hand mixer or using a spoon, mix until well combined.
Once the mixture looks like cookie dough gently fold in 1 cup of the rolos using a spoon.
Place the chocolate chip cookie dough into your prepared pan, press it out evenly and top with the remaining 1/3 cup of rolos.
Bake for about 30 minutes, until the sides are nice and golden.
Remove from the pan and allow to cool completely before slicing into cookie bars.