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!

Filling and healthy Oatmeal Smoothie with peanut butter, banana, and cinnamon. With benefits like fiber, protein, healthy fats, and whole grains, this vegan breakfast smoothie will keep you full for hours! Great for breakfast, kids, and for weight loss too!

Oatmeal Smoothie

5 from 107 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 mins
Total: 5 mins

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!

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  1. So delicious! I have never finished a smoothie I’ve made or ordered.. I am a foodie and a calorie counter. So, if something doesn’t taste delicious, I won’t finish. I like the convenience of a smoothie though so I’ve kept searching. This is the first smoothie I’ve finished! (And I am talking in years!) Definitely a breakfast and snack option for me! I can taste the wonderful flavors of cinnamon, honey (my maple syrup alternative), peanut butter, and banana. One ingredient doesn’t overpower the others. I don’t like watery smoothies; the thickness of this smoothie is perfect. Fluid enough to drink but not runny like so many fruit smoothies I’ve had. Yum!5 stars

  2. Super easy to make and delicous! So happy I ran into this smoothie recipe, I would highly reccomend.5 stars

  3. Hi Erin,
    I am new in the smoothie making space but need a meal to take to work instead of eating the more unhealthy offering they have.
    I have access to all the ingredients and with my new bullet blender and ready to go….
    Just a few questions please..
    Can I make in bulk and store in the fridge for a few days until used?
    When I take it to work do I need to refrigerate it until I consume?
    Is this suitable for a meal replacement for breakfast and can I have another helping for lunch before having a good dinner at home.
    The underlying goal is weight loss…
    Many thanks John

    1. Hi John! #1 This smoothie tastes best the day it is made, but can be refrigerated for up to 1 day. #2 I recommend enjoying it immediately but it should be stored in the refrigerated when not consuming it. #3 I am not a health professional so I can not give guidance on it being suitable for meal replacement. Hope you enjoy the recipe!

  4. Hi Erin, I hope you have a beautiful day! Just want to ask – what’s the difference between “Place the oats in the bottom of a blender and pulse a few times until finely ground.” and simply blending them all together with the other ingredients? Is there any difference? Thank you!

    1. Hi Hannah, when you pulse them first this gives a finer grain instead of a chunkier type of grain in your smoothie. This is just something I prefer. If you try it another way, let me know how it goes!

  5. This recipe is crazy good especially when I added vanilla flavored plant based protein powder. This will certainly remain in rotation. Thanks!5 stars

  6. This has become our favorite recipe for breakfast smoothies. Had to eliminate almond milk and peanut butter due to allergies, but replaced them with pure coconut milk and a flax/chia/hemp seed blend. Delicious!

    Then we experimented with other smoothies. Used this recipe and added dried raisins/ cranberries, honey, unflavored Greek yogurt, strawberries, or peaches, every batch a little different from the last. So yummy!

    I must be careful and drink slowly. It’s so delicious I want to slam it. I drink too fast and get a stomachache. Similar to swallowing a bowl of oatmeal/fruit in three swallows, it causes a stomach ache. Oy vey!5 stars

  7. I am shocked at well this tastes! We substituted creamy peanut butter with Almond Butter and whole milk for the almond milk. Added some chia seeds and hemp hearts as well. And used a pre-packed bag of strawberry and bananas since we didn’t have any bananas.
    Thanks for the ideas!5 stars

  8. I absolutely love this oatmeal smoothie! It has the perfect amount of thickness and it is super delicious. First time I had it, I literally gulped it down – it was sooo good. I have tried many smoothies before, and the smoothies on this site are the best I have ever had. I have tried several here and I haven’t had one I don’t like. Thank you so much for posting these. I am on a weight loss journey and these are perfect!5 stars

  9. Very yummy! I only had whole milk, so used that, and added fresh blueberries. I threw in two ice cubes at the end. Nice consistency. Really like the oatmeal!5 stars

  10. Soooo tasty and delicious!!! Just the flavor combo of banana, cinnamon and peanut butter that I was looking for. I added 1 scoop of vanilla protein powder for additional nutrients. Looking forward to trying some of your other healthy protein smoothies.5 stars

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