This Low Calorie Mango Pineapple smoothie is just 115 calories, and it comes with great add-ins to boost nutrition and turn this snack smoothie, into a meal worthy smoothie.I like to add in protein powder, oats, and spinach (it won't change the flavor!) to make it a meal replacement smoothie. But I often make this McDonalds copycat recipe as an afternoon snack for my kiddo. Special Tip: You cab easily make this a vegan smoothie with Cashew Yogurt.