Oatmeal Smoothie blends up in minutes for a quick, filling breakfast or snack. It’s creamy, packed with fiber, and bursting with flavor—plus, it’s naturally dairy-free and vegan!

Be sure to try this popular Açai Bowl recipe, Green Smoothie Recipe, or Blueberry Smoothie next.

Oatmeal Smoothie in a cup with a stick of cinnamon in it.
chelsea

author note

The Smoothie I Wake Up Craving!

I love smoothies at my house! Even in winter, my kiddos and I enjoy them for breakfast or snacks. Since we have them so often, I like to make sure they’re filling enough to avoid needing a second breakfast, like Blueberry Pancakes, just 20 minutes later.

One of my favorite ways to make a smoothie more filling is by adding nut butter—like almond butter in this Cherry and Banana Smoothie. And recently, I’ve started adding oats! Oats make it that much more filling.

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Can You Put Oatmeal In A Smoothie?

Absolutely! It’s safe to add raw oats, and once you try it, you’ll see oatmeal is one of the best smoothie add-ins. It makes your smoothie creamier, tastier, and more filling.

Slicing and freezing bananas; measuring out almond butter.

Ingredients

  • Oats: Use old-fashioned or quick oats; quick oats blend smoother.
  • Frozen Banana: Slice a banana into coins, freeze in bags or containers overnight.
  • Almond Milk: I love vanilla almond milk, but feel free to use any milk you prefer.
  • Almond or Peanut Butter: Use roasted and lightly salted butter for better flavor.
  • Maple Syrup: A natural sweetener. Start with less and add more if needed.
  • Ground Cinnamon: Full of anti-inflammatory benefits! Adjust to taste.
  • Salt: Just a tiny pinch (less than 1/16th teaspoon) brings out all the flavors.
Adding oats to a blender; pulsing to a powder for this oatmeal smoothie.

How To Make Oatmeal Smoothie

  1. Freeze Banana: A fully frozen banana makes the smoothie creamier and colder.
  2. Blend Oats: Powdering the oats first ensures a smoother texture in the smoothie.
  3. Add Ingredients and Blend: Add the liquid ingredients first for easier blending.
  4. Adjust and Serve: Taste the smoothie and add more maple syrup if needed.

Quick Tip

Good ripe bananas make all the difference in this smoothie. Freeze the bananas when they’re ripe and use only when completely frozen for the best banana smoothie. The riper the banana, the sweeter the flavor!

Banana Oatmeal Smoothie Tips

  • Measure: Measure ingredients the first few times to avoid making too much.
  • High-powered blender: With a Vitamix® or Blendtec®, just add everything and blend.

Variations

Switch Things Up

  • Add more protein: Add a scoop of vanilla protein powder or a tbsp of hemp seeds.
  • Add frozen fruit: Toss in berries. Try the Cherry Crisp Smoothie for measurements.
  • Spinach: It changes the color, but you won’t taste it.
  • Spices: Experiment with spices! In the fall, try a pinch of Pumpkin Pie or Apple Pie Spice, or add extra cinnamon.

More Smoothie Recipes

5 from 6 votes

Oatmeal Smoothie

This Oatmeal Smoothie is creamy, flavorful, and quick to make. Healthy, filling, and naturally vegan, it’s the perfect breakfast or snack!
Prep Time: 10 minutes
Overnight Banana Freeze: 8 hours
Total Time: 8 hours 10 minutes
Servings: 1 large serving

Equipment

Ingredients

  • 1/4 cup old-fashioned oats or quick oats
  • 1 frozen banana see note 1
  • 1 cup unsweetened vanilla almond milk or milk of choice
  • 2 tablespoons almond butter roasted and lightly salted, or peanut butter
  • 1 tablespoon maple syrup
  • 1/2 teaspoon vanilla extract optional
  • 1 teaspoon ground cinnamon
  • 1/16 teaspoon salt optional
  • 4 to 6 ice cubes

Instructions 

  • Add oats to a blender and pulse a few times until ground into a powder. Add frozen banana, milk, almond butter, maple syrup, vanilla, cinnamon, salt, and ice cubes.
  • Blend until smooth. If needed, stop blender and stir around with a spoon and begin blending again. Taste and add additional maple syrup if desired. Enjoy immediately!

Video

Recipe Notes

Note 1: Peel and slice the banana into coins, place in freezer-safe containers or bags, and freeze overnight. Having a completely frozen banana (as opposed to an unfrozen one) is what makes this smoothie. (I like to prep the bananas right after my grocery store run so I don’t forget!) 
Storage: This Oatmeal Smoothie is best enjoyed fresh, but if you have leftovers, pour them into an airtight container and store in the fridge for up to 1 day. Give it a good shake or stir before drinking!

Nutrition

Serving: 1serving | Calories: 619kcal | Carbohydrates: 90g | Protein: 17g | Fat: 25g | Saturated Fat: 2g | Polyunsaturated Fat: 7g | Monounsaturated Fat: 13g | Sodium: 463mg | Potassium: 930mg | Fiber: 14g | Sugar: 29g | Vitamin A: 82IU | Vitamin C: 10mg | Calcium: 472mg | Iron: 4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Meet Chelsea


Hello, and welcome to Chelseaโ€™s Messy Apron! Iโ€™m Chelsea, the recipe developer, food photographer, and writer behind the site. Iโ€™m passionate about creating simple, reliable, and delicious recipes that anyone can make.

Thanks for stopping byโ€”I hope you find something delicious to make!

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5 from 6 votes

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16 Comments

  1. Diane says:

    Some good recipes as I transition to healthier food. Thank you.

    1. Chelsea says:

      Thanks so much Diane! ๐Ÿ™‚

  2. Julia says:

    5 stars
    What a delicious, perfectly sweet (not too sweet) smoothie. The thickness is just right. Thanks for this recipe. My homemade smoothie concoctions just donโ€™t have the right ratios.

    1. Chelsea Lords says:

      So happy you enjoyed this smoothie! ๐Ÿ™‚

  3. Rosa says:

    This smoothie was pretty good. I loved the cinnamon! Instead of blending the oats dry, I soaked the oats overnight in a little water and they blended up very smoothly in the morning. Next time I’ll add less almond milk to make it a little thicker. Ideas for some variations would be to add some cocoa powder and substitute 1/2 cup of strong cold brewed coffee for 1/2 cup of the almond milk!