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This oatmeal smoothie recipe is a creamy and delicious way to get your whole grains! Blend it up with peanut butter, banana and cinnamon.

Oatmeal smoothie
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Oatmeal is on our table almost every single day, usually as a big bowl or oatmeal bars. So here’s yet another way to eat this whole grain: an Oatmeal Smoothie! Blend up oats with banana and peanut butter and it tastes just like a bowl of oatmeal. The puree is perfectly scented with cinnamon and ultra creamy. Packed with protein, it’s the ideal breakfast or healthy snack. As smoothie experts with over 50 recipes under our belts, we can guarantee this will be a hit!

Oatmeal smoothie ingredients

You’ll need a handful of ingredients for this oatmeal smoothie, and if you’re anything like us, you’ll already have them on hand. Here’s what you need for this smoothie recipe:

  • Old Fashioned rolled oats: Use regular old Fashioned oats. Steel cut oats don’t work as a substitute; they’re the texture of rice so much too hard to blend.
  • Bananas: This recipe uses room temperature bananas to make it simple to whip up anytime. You can also use frozen bananas if you have them.
  • Frozen pineapple: This fruit has a neutral flavor that infuses just the right sweetness and icy texture. For a substitute, use 1 cup peeled apple (and use a frozen banana for texture).
  • Peanut butter: Nut butter adds creaminess and protein to an oatmeal smoothie; it’s also great with almond butter or cashew butter. For nut allergies, use sunflower butter
  • Greek yogurt: Adding yogurt packs in protein and makes a creamy texture for smoothies. For dairy-free, use more non-dairy milk.
  • Milk: Use dairy milk, or non-dairy milk of choice (oat milk is our favorite).
  • Vanilla, cinnamon and salt: These ingredients work in combination to make the flavor of a bowl of oatmeal.
  • Ice: Ice achieves just the right icy texture in smoothie recipes.
Oatmeal smoothie recipe

Flavor variations and add-ins!

Throw the ingredients into a blender and whiz them into a beautiful creamy oatmeal smoothie! Take one sip and it tastes remarkably like…well, oatmeal. The cinnamon is key to the oatmeal vibe. Here are a few more tweaks to this banana oatmeal smoothie you can do to vary the flavor:

  • Increase the cinnamon. Use the high end of the cinnamon specified in the recipe below for a cozy Cinnamon Oatmeal Smoothie.
  • Vary the nut butter. Use any type of nut butter in place of the peanut butter, like almond butter, cashew butter, or pecan butter.
  • Add chai spices. Substitute cozy chai spices for the cinnamon to make a Chai Oatmeal Smoothie.
Banana oatmeal smoothie

Make it a vegan oatmeal smoothie

This banana oatmeal smoothie has Greek yogurt to load on protein and healthy probiotics. But want a vegan smoothie? Try it with oat milk instead. Here’s what to do:

  • Use oat milk in place of both dairy milk and yogurt. An oatmeal smoothie needs oat milk, right? We love using this dairy free milk in smoothies: it’s very creamy and makes for a good body. It’s easy to find at your local grocery. Substitute the non-dairy milk for the dairy milk and half the quantity of yogurt, then add back more milk if necessary for blending.
  • Add back some protein. You’ll lose some protein from removing the yogurt. Consider adding up to 2 tablespoons chia seeds.

Smoothie storage

This oatmeal smoothie is best right after you blend it up. But you can make smoothies in advance! Store them up to 1 day, refrigerated in a sealed container or a mason jar with the lid on. The smoothie may separate, which is perfectly natural. Just shake it up before enjoying.

Peanut butter banana oatmeal smoothie

Oatmeal nutrition info

Why make an oatmeal smoothie? Well, oats are a healthy whole grain full of nutritional benefits. Here’s some of the good stuff you get from oats (per Healthline):

  • Oats are high in plant based protein. 1 cup of raw oats have 11 grams protein. That’s about 20% of your daily need!
  • Oats are high in fiber. 1 cup of raw oats have 8 grams of fiber, which is about 30% of the daily value.
  • Oats are very filling: they may reduce appetite and help you eat less calories.

More smoothie recipes

This oatmeal smoothie is one in a long list of healthy smoothie recipes we’ve created here at A Couple Cooks. Try one of the following:

This oatmeal smoothie recipe is…

Vegetarian and gluten-free. For vegan, plant-based, and dairy-free, follow the notes in the section above.

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Oatmeal smoothie

Oatmeal Smoothie

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  • Author: Sonja Overhiser
  • Prep Time: 5 minutes
  • Cook Time: 0 minutes
  • Total Time: 5 minutes
  • Yield: 1 large or 2 small smoothies 1x


This oatmeal smoothie recipe is a creamy and delicious way to get your whole grains! Blend it up with peanut butter, banana and cinnamon.


  • ¾ cup Old Fashioned rolled oats (or up to 1 cup)
  • 1 tablespoon peanut butter
  • ½ cup Greek yogurt
  • ½ cup milk (or omit yogurt and use ¾ cup oat milk for vegan)
  • 1 1/2 ripe bananas (room temperature)
  • 1 cup frozen pineapple
  • ¼ teaspoon vanilla extract
  • 1/4 to 1/2 teaspoon cinnamon
  • ⅛ teaspoon salt
  • 8 ice cubes
  • Maple syrup, to taste (optional)


  1. Add the ingredients to a blender, breaking the banana into pieces. Blend until creamy and frothy, stopping and scraping down the sides as necessary. 
  2. Taste: depending on the ripeness of the bananas, you may want to add a drizzle of maple syrup. Eat immediately or store 1 day in a sealed jar; if it separates, shake to re-integrate it.
  • Category: Drink
  • Method: Blended
  • Cuisine: Smoothie
  • Diet: Vegetarian

About the authors

Sonja & Alex

Hi, we’re Alex and Sonja Overhiser, married cookbook authors, food bloggers, and recipe developers. We founded A Couple Cooks to share fresh, seasonal recipes for memorable kitchen moments! Our recipes are made by two real people and work every time.

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  1. Anonymous says:

    Thank you beautiful ❣️ Smoothie.

  2. John E Gamble says:

    Question: Looking at your breakfast smothie recipes, my question is when the recipe notes it serves 2 and gives a total calorie number, is that number for 1 or 2 servings? Additionally, the same question applies to the nutritional listed amounts. Is that listing for one or two servings?

    Thank you,


    1. Alex Overhiser says:

      It is for 2 servings and info is per serving. This one is higher calorie!

  3. Fay Collins says:

    Just love the oatmeal smoothie recipes, I’ve been looking for just that! Thankyou. I do plan on trying some of you others as well

    1. Alex Overhiser says:

      Thank you!