1. Grab five freezer-safe sealable plastic bags and divide the ingredients between them. Add: 2 cups of greens, 1/2 a banana (sliced), 1/4 cup blueberries, 1/4 cup mango, and 1/4 avocado.
2. Close them up and feel free to write any notes on the bag such as the date or ingredients you want to add later, then place them in the freezer.
3. When you're ready to make your smoothie, empty the contents of the freezer pack into your blender, add the extra ingredients like water or coconut water, almond or soy milk, protein powder, flaxmeal, chia seeds, cinnamon, beans, tofu, or whatever you please. Blend it up and enjoy!

Source: Calorie Count [1]

Here's the calorie breakdown of other smoothie ingredients you might want to add to your blender:

• 1 cup unsweetened soy milk: 80 calories [2]
• 1 cup unsweetened vanilla almond milk: 40 calories [3]
• 1 cup coconut water: 43 calories [4]
• 1 serving (about 35 grams) vanilla protein powder: 110 calories [5]
• 1/2 cup nonfat vanilla Greek yogurt: 83 calories [6]
• 1/2 cup vanilla soy yogurt: 105 calories [7]
• 1/2 cup coconut milk yogurt: 90 calories [8]
• 1/2 tablespoon chia seeds: 30 calories [9]
• 1 tablespoon flaxmeal: 40 calories [10]
• 1 serving soft tofu (1/5 package): 60 calories [11]
• 1/4 cup cannellini beans: 50 calories [12]
• 1 tablespoon almond butter: 95 calories [13]