These spinach smoothie cubes are a busy morning LIFESAVER!!! And super easy to make! All you need to do is fill your food processor with spinach leaves. Add a little bit of water (~1/3 cup). Blend until smooth. Fill ice cube trays with spinach mixture and freeze for at least 1 day. I like to pop the cubes out of the tray, once frozen, and put in individually portioned ziplock bags in the freezer. I typically portion 4-6 cubes per bag. You will be getting SO much more spinach in per smoothie than ever before!!