"This is my go-to breakfast when I need a lot of energy and endurance! Depending how much energy you need, you can add more bananas and mangoes. You can also put an extra 1/2 cup romaine lettuce (or spinach) into the smoothie without changing the taste. If you really like chia seeds (like I do!), you can add an extra tablespoon. I often drink this after eating 1 ounce sunflower seeds or nuts just to complete the meal. Feel free to add or modify anything you please. Delicious and nutritious."
Blend mango, banana, water, lettuce, ice, and flax seeds together in a blender until smooth, about 2 minutes. Add chia seeds to mango mixture and stir. Let sit until smoothie thickens slightly, about 2 minutes.