Smoothies made with spinach go down easily with the addition of some frozen fruit and are a fantastic way to get all of the colors of the rainbow in one glass. The addition of blueberries makes this smoothie appear delightfully purple. Portioning the smoothie in mason jars to stash in the fridge makes for a quick and healthy snack or breakfast on the run. The chia seeds help to keep the smoothie consistency thickened, even if you keep it in the fridge long enough for the frozen fruit to completely thaw.