I started making these frozen little gems of goodness when some of my fresh veg started to go wilty before I was going to get to it. Now I am completely addicted to having them in my smoothies everyday. Sometimes I buy stuff just to make them.
So once a wee or so I go through my fridge and take all the leftover:
Lemons-I use a lot of lemon and add it whole, rind and all
I through them all into my Ninja with kombucha and make into a thick put pourable consistency
Pour into ice cube trays and freeze
Once frozen, I pop out and store in a container in my freezer
I add1-2 in my smoothie every morning
You can get completely creative here, just remember to make them power packed!