Recipe Help Please!

So, I have a juicer. We got it from our registry. It has spent its entire life in our closet. I want to make something. I have protein powder that I would like to use, and I have frozen mango and frozen blueberries. All you creative people out there, any good recipes? I'm going to the Sunflower market and will have awesome produce at my finger tips so I figure I'll get some things to include. I'd love to make a low cal, nutrient rich drink to replace the awesome Mix 1s that we ran out of.