Mix all cookie dough ingredients (besides chocolate chips) together until smooth
Mix in chocolate chips and refrigerate for 30-45 minutes
Roll into ~30 balls and put back in the refrigerator
Blend the frozen bananas and milk until smooth, this will take a few minutes
Mix together "ice cream" and cookie dough bites (saving a few for the top, if desired)
Either enjoy immediately, or freeze for 1-2+ hours in a glass bread pan for more scoop-able ice cream