Chocolate Peanut Butter Banana Smoothie

The other morning I was blog hopping and just KNOW I saw a picture plus recipe featuring this. Then while on my morning job this morning I thought of it and craved it..it was all I could think of all morning and decided that I would make one for my breakfast. Well I searched high and low in blogger land and could not find that blog anywhere. Why did I not save it?? So I tried to make my own adding in ice, milk, chocolate pb2 and a frozen banana. Ehh it was okay but tasted pretty bland. So I need a good smoothie recipe or atleast some tips how to perfect this a little. I could easily see smoothies becoming a quick, healthy and easy summer treat for not only me but the kids too!