If you're looking for a lower calorie drink, try making a few modifications. Liquid. Use water or unsweetened almond milk as your smoothie liquid.  Peanut Butter. Try using a powdered peanut butter to eliminate some of the fat calories. Or just use half of the amount of peanut butter in the recipe.  Yogurt. Use a plain yogurt or non-fat greek yogurt for additional protein.   Sweetness. Omit the honey altogether, or replace it with your favorite artificial sweetener.