This Oat Milk Strawberry Banana Smoothie is vegan and dairy-free, and made with just four ingredients. And, this healthy and super creamy smoothie takes less than 10 minutes to make!

Oat milk strawberry banana smoothie served in a glass.

Breakfast smoothies are such an excellent way to pack in whole foods and nutrients. This simple smoothie is refined-sugar free with extra protein from the peanut butter and no added sugar.

Plus, it’s so creamy and satisfying even without dairy milk! Don’t you just love easy recipes like this one?

This smoothie is delish any time of year but it’s especially refreshing on a hot summer day.

Recipe Benefits

  • This recipe is made 100% dairy-free and vegan. You don’t need dairy or Greek yogurt for a thick, creamy smoothie.
  • It’s only four ingredients with no added or extra sugars! Sometimes the simplest and easiest recipes taste the best (don’t miss my Orange Pineapple Smoothie).
  • It’s ready in less than 10 minutes. If you’re in a hurry this healthy breakfast smoothie makes a perfect on-the-go meal. It’s great if you love a sweet breakfast but want to start the day off right.

Key Ingredients

Ingredients for a strawberry smoothie
  • Frozen strawberries give the smoothie strawberry flavor while making it cold without the need for ice.
  • Banana naturally sweetens the smoothie and thickens it up. Learn how to freeze bananas for smoothies, especially if you have an overripe banana.
  • Peanut butter adds protein and a delicious nutty flavor. You can also swap out the peanut butter for almond butter or sunflower seed butter.
  • Oat milk makes the liquid base of the smoothie and helps it become creamy and smooth. You can use boxed oat milk or homemade oat milk. If you’re on a gluten-free diet, then be sure to use oat milk that is certified gluten-free.

See the recipe card below for the exact ingredients and measurements.

Recipe Steps

photo collage with how to make this oat milk smoothie recipe

Step One

In a high speed blender like a Vitamix, combine the oat milk, frozen strawberries, and frozen banana.

Step Two

Add the rest of the ingredients.

Please see the recipe card at the end of this post for the exact ingredients and measurements.

Step Three

Lock on the lid and blend for 60 seconds or until it’s smooth with a creamy texture.

Step Four

Serve immediately or refrigerate for up to 48 hours in a covered container.

This banana oat smoothie with oat milk is a great way to get healthy fats, satisfying protein, and vitamin C.

On hot summer days, this is such a delicious way to start the day. It tastes like healthy ice cream and is the perfect way to cool down.

Pouring a strawberry smoothie into a glass.

Recipe Tips

  • The nutrition information for this recipe does not include the optional protein powder. See my list of clean protein powder. One scoop of protein powder can add up to 10-20 grams of protein per serving.
  • For a chocolate version of this oat smoothie, add 1-2 tablespoons of cocoa powder or cacao powder.
  • If you don’t have oat milk, any other plant milk or regular milk will work in its place. Almond milk or coconut milk would be great options. If you want it to be really sweet, you could even use orange juice.
  • Store any leftovers in a covered container in the refrigerator for up to 3 days. Or, freeze any extra in ice cube trays or popsicle molds for a healthy treat.

Recipe FAQs

Can I use ice in this smoothie?

You won’t need ice. Frozen strawberries are all this smoothie needs to be perfectly thick and creamy. Ice cubes may not break down all the way and can give it an icy texture.

Can I use fresh strawberries?

Frozen strawberries are what gives this smoothie it’s cold and thick texture. If you only have fresh fruit, simply cut the tops off and place them on a sheet pan to freeze. Once frozen, make the recipe as directed. Just be sure the strawberries are ripe and sweet.

Is oat milk gluten-free?

Oats can be contaminated with gluten, so be sure to look for a certified gluten-free brand of oat milk. Or, you can use certified gluten-free oats to make homemade oat milk.

Can I make this recipe nut-free?

Yes, feel free to replace the peanut butter with chia seeds, sunflower seed butter, or pumpkin seed butter instead.

Can an oat milk smoothie help with breastmilk supply?

Oats have evidence that they can help increase breastmilk supply in breastfeeding mothers, and many women report that oat milk can also help. Feel free to add up to 1/4 cup of rolled oats in this smoothie to help with milk supply.

three glasses of strawberry smoothie served with straws.

More Breakfast Smoothie Recipes You Might Like

Or, check out my complete index of dairy-free smoothies.

I hope you make this recipe! If you do, please leave a comment and a starred review below.

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Strawberry smoothies with straws

Oat Milk Smoothie with Strawberry and Banana

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5 from 1 review

This Oat Milk Strawberry Banana Smoothie is vegan and dairy-free, and made with just four ingredients. And, this healthy and super creamy smoothie takes less than 10 minutes to make!

  • Total Time: 7 minutes
  • Yield: 2 1x


Units Scale
  • 2 cups homemade oat milk or boxed oat milk
  • 1 frozen ripe banana, broken in half
  • 1 cup frozen strawberries
  • 2 tablespoons almond butter or peanut butter
  • 2 scoops unsweetened protein powder (optional, for added nutrition)


  1. In the pitcher of a high-speed blender like a Vitamix or a Blendtec, combine the oat milk, banana, strawberries, nut butter, and protein powder, if using.
  2. Lock on the lid and then blend the smoothie for about 60 seconds, or until it is smooth and creamy.
  3. Serve immediately, or refrigerate any leftovers for up to 48 hours in a covered container.


  1. The nutrition information for this recipe does not include the protein powder.
  2. For a chocolate version, add 1-2 tablespoons of cocoa powder or cacao powder.


  • Serving Size: 1/2 of recipe
  • Calories: 295
  • Sugar: 18.6 g
  • Sodium: 102.5 mg
  • Fat: 14.3 g
  • Saturated Fat: 1.2 g
  • Carbohydrates: 38.3 g
  • Fiber: 6.7 g
  • Protein: 7.5 g
  • Cholesterol: 0 mg

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About the Author: Carrie Forrest has a master’s degree in public health with a specialty in nutrition. She is a top wellness and food blogger with over 5 million annual visitors to her site. Carrie has an incredible story of recovery from chronic illness and is passionate about helping other women transform their health. Send Carrie a message through her contact form.