I've eventually succumbed to the nutri bullet and this morning made myself a really nice booster of a smoothie. I've discovered it also helps if you read the manual 1st..... My 1st couple of attempts turned into a thick sludgy goo, more cold thick soup than remotely a smoothie. And then I read 'add water/fluid'. It revolutionised my smoothies! anyway back to the smoothie - I surprised myself and have discovered kale and spinach in another light completely. Try this and see what you think, the recipe is a little on the freeform side.
raw spinach, raw kale, 1 eating apple, a little water and orange juice and whiz.