Broccoli Banana Peanut Butter Smoothie You're an old pro at adding greens like kale to your smoothies, and you've even tried recipes using celery and cucumber. But have you ever tried broccoli? Calories: 332 Protein: 22.8 grams Get the recipe: broccoli banana peanut butter smoothie Image Sources: POPSUGAR Photography and POPSUGAR Photography / Jenny Sugar