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As revved up and accomplished as I feel after drinking a filling breakfast smoothie, it’s not necessarily what I wake up craving, especially during the cooler months when I’m walking around my house wrapped in a blanket. This vegan Oatmeal Smoothie is an exception. Made with easy ingredients like bananas, peanut butter, and cinnamon, its cozy flavor and creamy texture trigger sensations of comfort, all while fueling my body for a healthy day ahead.

Oatmeal smoothie with banana, peanut butter, and almond milk in a glass

If you’re looking to make breakfast smoothies for weight loss, add extra servings of fruits and veggies to your diet, need a balanced smoothie for post-workout recovery, or just want a yummy, filling way to nourish your body, this banana oatmeal smoothie recipe is one you’ll want to sip over and over again.

If you’re new to the smoothie game, it’s also a delicious, approachable place to start.

Personally, I love green smoothies (especially this Kale Pineapple Smoothie and this Apple Avocado Smoothie), but I recognize that those who are newer to the smoothie game might want to tiptoe their way in a bit (this Apple Smoothie is another great place to start).

A creamy oatmeal smoothie also feels like a cheerier and a more gentle smoothie than something super dark and seriously green.

With its sweet banana base, warm oats and cinnamon, and the decadent taste of peanut butter, this smoothie tastes like an oatmeal cookie.

I might not be able to eat actual cookies for breakfast forever, BUT I can have a hearty breakfast smoothie that tastes like one any morning!

A delicious, creamy breakfast drink made with healthy ingredients

About This Oatmeal Smoothie Recipe

The Ingredients

The ingredients you will need to make this quick and healthy breakfast smoothie are:

  • Oatmeal. A seriously underrated smoothie ingredient! Oatmeal is rich in fiber, and it makes smoothies satisfyingly thick and ultra filling. This oatmeal smoothie will keep you full all morning, and the oatmeal is a big part of that.

Because the oatmeal is ground in the blender, you can use any kind of oats you have on hand. I most often use rolled oats, but quick oats work too.

If you are making an instant oatmeal smoothie (using instant oatmeal packets), make sure the packet isn’t sweetened or flavored.

Three other favorite breakfast smoothies with oats: Blueberry Banana Smoothie (this one tastes like blueberry pie!), Strawberry Kiwi Smoothie, and Blueberry Cream Oatmeal Smoothie. You can also add a few tablespoons of oatmeal to any one of these Healthy Breakfast Smoothies.

  • Frozen Banana. The next time you have spotty bananas on your counter, peel and cut them into pieces, then freeze them in a ziptop bag. They make any smoothie thick, naturally sweet, and creamy.


If you are in a hurry to freeze your bananas, you can cut the slices thinly and spread them in a single layer on a parchment-lined plate or baking sheet. Pop them in to your freezer, and they’ll harden within a half hour.

If you don’t have any frozen bananas, you can use fresh banana. Your smoothie will be more liquidy, so pop in a few ice cubes at the end to thicken it up.

  • Peanut Butter. The healthy fat and protein in peanut butter are a big part of what makes this oatmeal smoothie so filling. It’s just the touch of richness the smoothie recipe needs to taste satisfying and not like something you’re stuck eating.

Any kind of creamy peanut butter will work here (shelf stable or drippy), so feel free to use your favorite. You can use crunchy peanut butter also, though I prefer the smoothness of creamy.

  • Maple Syrup. I’m a sucker for the flavor of maple and oatmeal together. A half tablespoon was plenty for me, but feel free to adjust to your taste.

Maple syrup makes this oatmeal smoothie vegan, but you can swap honey if that isn’t a concern.

  • Almond Milk. Unsweetened plain or unsweetened vanilla almond milk is my fave for smoothies. If you can’t tell, I’m a wee bit compulsive about my smoothies being creamy, and since almond milk is creamy on its own, it adds to the effect.

Substitution Tip!

Feel free to use any milk in this smoothie you like. The oatmeal smoothie is quite thick as the recipe is written, so if you prefer a thinner texture or your blender is struggling, splash in a little extra.

  • Cinnamon + Pure Vanilla Extract. Solidifies the oatmeal cookie flavor factor.
Easy oatmeal smoothie in a glass with banana, peanut butter, and cinnamon

The Directions

  1. Add the oats to the blender.
    Ground oats in a blender
  2. Pulse until fairly finely ground.
    oatmeal, bananas, and peanut butter in a blender for a smoothie
  3. Add the remaining smoothie ingredients, and blend until smooth. That’s it. ENJOY!

Optional Oatmeal Smoothie Recipe Additions

The beauty of smoothies is their flexibility. Stock up on a few essentials or survey what you already have, then use them to blend up healthy breakfast smoothies on demand!

  • Strawberry Oatmeal Smoothie. Replace half of the banana with frozen strawberries. If you’d like it to be a peanut butter oatmeal smoothie no bananas, you can replace the bananas with strawberries entirely.
  • Extra Protein Oatmeal Smoothie. Add a scoop of your favorite vanilla or chocolate protein powder.
  • Green Oatmeal Smoothie. Ready to embrace the green? Add a handful or two of spinach. It will change the color, but the taste is imperceptible. If you are looking to slide a green oatmeal smoothie past picky eaters and hiding the green is important, consider adding oatmeal to a darker, berry-colored smoothie like this Blueberry Avocado Banana Smoothie, or add a few handfuls of blueberries or raspberries to this recipe.

Other Favorite Smoothie Recipes

A glass filled with a filling, healthy breakfast drink

Happy oatmeal smoothie sipping!

Oatmeal Smoothie

4.97 from 164 votes
Creamy Oatmeal Smoothie with peanut butter and banana. With fiber, protein, and healthy fats, this vegan breakfast smoothie is filling and delicious!

Prep: 5 minutes
Total: 5 minutes

Servings: 1 smoothie


  • 1/4 cup old-fashioned oats or quick oats
  • 1 banana chopped into chunks and frozen
  • 1/2 cup unsweetened almond milk
  • 1 tablespoon creamy peanut butter
  • 1/2 tablespoon pure maple syrup plus additional to taste
  • 1/2 teaspoon pure vanilla extract
  • 1/2 teaspoon ground cinnamon
  • 1/8 teaspoon kosher salt don’t skip this, as it makes the oatmeal pop!
  • Ice optional, add at the end if you want a thicker smoothie


  • Place the oats in the bottom of a blender and pulse a few times until finely ground. Add the banana, milk, peanut butter, maple syrup, vanilla, cinnamon, and salt.
  • Blend until smooth and creamy, stopping to scrape down the blender as needed. Taste and add additional sweetener if you’d like a sweeter smoothie. Enjoy immediately.



  • This smoothie tastes best the day it is made, but can be refrigerated for up to 1 day.
  • For fast prep, pre-portion the oats, banana, and spices in a ziptop bag and freeze until needed. Add with the remaining ingredients to a blender and enjoy!


Serving: 1smoothieCalories: 327kcalCarbohydrates: 54gProtein: 8gFat: 11gSaturated Fat: 2gFiber: 7gSugar: 24g

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Erin Clarke

Hi, I'm Erin Clarke, and I'm fearlessly dedicated to making healthy food that's affordable, easy-to-make, and best of all DELISH. I'm the author and recipe developer here at and of The Well Plated Cookbook. I adore both sweets and veggies, and I am on a mission to save you time and dishes. WELCOME!

Learn more about Erin

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  1. Erin thank you so much for this recipe. Every time I make one of your recipes I am always so glad that I did!
    I am not vegan so I used 1% milk.
    So delicious and filling. A great breakfast for a super hot summer day.5 stars

  2. This Oatmeal Banana Smoothie was very good. I had all of the ingredients on hand (that never happens!). I made the smoothie with spices exactly as directed. Delicious & kept me full most of the day. And the smoothie was extremely easy & fast to make. A very, very enjoyable recipe & breakfast.5 stars

  3. Erin, I was wondering if you can substitute almond butter for the peanut butter. I need to be an a very low sugar diet.

  4. I never thought that I would be able to make a smoothie as good as the smoothie shops; but, this is even better!!! Thank you for sharing, Erin. My husband and I are now drinking these every morning. I used peanut powder 1 Tbsp instead of creamy and honey because I didn’t have maple syrup. It was still very delicious. Can’t wait to try some of your others. ❤️❤️❤️5 stars

  5. Hi Ms. Erin!
    This looks interesting. simple recipe.
    Can you substitute honey syp for maple syrup?
    what’s the taste difference if fine table salt is use for kosher salt?
    Thank you!

    1. Hi Ethel, the taste difference with using table salt vs. kosher salt, will that the recipe will taste salty. Kosher is a bigger grain than table salt. And I am sure you could use maple syrup as well. Hope you enjoy it!

  6. I ommited sugar, cinnamon and vanilla since I don’t have them. Even then; its still the best smoothies Ive ever made! I can imagine the fullness when I use full ingreidents! Thanks!5 stars

  7. I made this recipe for lunch and it turned out fantastic!! I used oat milk instead of almond and it was super creamy and not too sweet! toddler approved as well XD5 stars

  8. I’m new to the smoothie game and this was absolutely amazing! First smoothie I have ever made, actually. For my preference, I added an extra tbsp of peanut butter, a little more almond milk and a dash of extra vanilla. It was super good before that, though!5 stars

  9. OMG…so yummy! I skipped the maple syrup, added 1 Tbsp. oat bran, 1 serving collagen powder and 1 tsp. cacao. I will definitely make this again!5 stars

  10. Tasted pretty good and was super easy to put together. Didn’t have frozen bananas so I used UNRIPE bananas… big mistake. Left a horrible aftertaste but I learned something new today. Use exactly what the recipe tells you to!

    1. Sorry to hear you had trouble with the recipe, Emma! I agree, unripe bananas would make this not come out tasty.

  11. I used Choczero maple syrup and made it as directed, it was delicious! My go to breakfast from now on, thank you!5 stars

  12. Very tasty although for me I had to put about a half a cup more of almond milk. Since I’m watching my sugar intake I used about a half cup of a strawberry, papaya and mango mix, and it was perfect!5 stars

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