Here's the strawberry banana smoothie I made last week.  Looks good, doesn't it?

And you would never know that it has almost half a cup of zucchini in it!  

I'm clearing out the freezer and getting my green veggies at the same time.  Sneaky!

Mine was a handful of frozen strawberries, a banana (also frozen), a splodge of yogurt, a splash of lime juice, and the zucchini.  But yo can use any fruit you have on hand!