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

Oatmeal is on our table almost every single day, and baked oatmeal and oatmeal bars are some of our ultimate treats. We could probably eat it for every meal (no exaggeration). So here’s yet another way to eat this healthy whole grain: an Oatmeal Smoothie! Blend up oats with banana and peanut butter and it tastes, oddly enough, just like a bowl of oatmeal! The puree is perfectly scented with cinnamon and ultra creamy. It’s packed with protein, the ideal breakfast smoothie or healthy snack.

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 to know:

  • Old Fashioned rolled oats: Use regular old oats: don’t even think about substituting steel cut oats! They’re the texture of rice so much too hard to blend
  • Bananas: Room temperature! You’re welcome
  • Frozen pineapple: Trust us: it makes just the right sweetness and icy texture!
  • Peanut butter: Adds creaminess and protein: for nut allergies, use sunflower butter
  • Greek yogurt: Yogurt also adds loads of protein and a creamy body
  • Milk: Use normal milk or the vegan variation below
  • Vanilla: The extract develops the flavor just enough
  • Cinnamon and salt: Cinnamon is perfect for the oatmeal vibe
  • Ice: Ice achieves just the right icy texture
Oatmeal smoothie recipe

Flavor variations and add-ins!

Throw the ingredients into a blender and whiz them into a beautiful creamy puree: and you’ve got an 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 it up:

  • Customize the cinnamon: We’ve listed a range in the recipe below. Use the ½ teaspoon cinnamon for a very forward spiced flavor.
  • 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.
Banana oatmeal smoothie

Make it a vegan oatmeal smoothie

This banana oatmeal smoothie has Greek yogurt, like many of our smoothie recipes, to load on protein and healthy probiotics. But want a vegan smoothie? Try it with oat milk.

  • Use oat milk (and skip the 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. Use slightly more dairy free milk until the smoothie comes together.
  • Add back some protein! You’ll lose some protein from removing the yogurt. Here are some ideas for adding plant based protein: add more peanut butter, or throw in 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 and you’re good to go!

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 (source):

  • 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.

This oatmeal smoothie recipe is…

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

clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Oatmeal smoothie

Creamy Oatmeal Smoothie

  • 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

Keywords: Oatmeal smoothie, oatmeal smoothie recipe, banana oatmeal smoothie, peanut butter banana oatmeal smoothie

More smoothie recipes

Love healthy smoothie recipes? Try one of the following:

About the authors

Sonja & Alex

Meet Sonja and Alex Overhiser: Husband and wife. Expert home cooks. Authors of recipes you'll want to make again and again.

Leave a Comment

Recipe rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.


  1. 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

  2. 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,