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Clear glass with a clear straw filled with an oat milk smoothie on a white background surrounded by rolled oats.

Oat Milk Smoothie

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Milkshake for breakfast, anyone? Rich, creamy, and completely delicious, this healthy oat milk smoothie combines banana, peanut butter and oat milk for a filling way to start your day. This naturally sweet recipe is bound to become a new favorite for breakfast or snack that you can enjoy anytime!
Course Breakfast, Dessert, Snack
Cuisine American
Diet Gluten Free, Vegan, Vegetarian
Keyword banana walnut smoothie, oat milk, oat milk smoothie
Prep Time 5 mins
Total Time 5 mins
Servings 2
Calories 317


  • 2 cups unsweetened oat milk
  • 2 tablespoons peanut butter or almond butter
  • 2 tablespoons ground flax seed
  • 1 banana sliced and frozen
  • 2 scoops vanilla protein powder of choice optional
  • ice optional


  • Add all the ingredients to a high speed blender. Blend on high until smooth. Serve immediately.


If using fresh banana instead of frozen, add ice for better texture.
For a thinner consistency, add more milk.
For nut-free be sure to use sunflower seed butter in place of peanut or almond butter.
For vegan, be sure to use a plant-based protein powder.
Nutrition information calculated using peanut butter and protein powder. Nutrition information will depend on the type of protein powder and nut/seed butter you use.
For more ingredients & substitutions, see blog post above.


Calories: 317kcal | Carbohydrates: 43g | Protein: 10g | Fat: 14g | Saturated Fat: 2g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 5g | Cholesterol: 2mg | Sodium: 187mg | Potassium: 481mg | Fiber: 6g | Sugar: 21g | Vitamin A: 530IU | Vitamin C: 5mg | Calcium: 379mg | Iron: 3mg