4.59 from 34 votes

Oatmeal Smoothie

Name: Oatmeal Smoothie
Prep time: 5 min
Total time: 5 min
Ingredients: 1 frozen banana ((chopped into chunks)); ½ cup unsweetened almond milk (or oat milk, plus more as needed to reach desired consistency ); 3 Tablespoons old fashioned rolled oats; 1 scoop (25 grams) vanilla protein powder (I used Nuzest ); ½ teaspoon cinnamon; ½ teaspoon vanilla

Brittany MullinsUpdated Jun 12, 2023

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Servings: 1

5 mins

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This oatmeal smoothie tastes just like a cinnamon oatmeal cookie. It’s healthy, packed with over 20 grams of protein and makes for a great breakfast or post-workout snack!

Love having oatmeal for breakfast, but want to switch things up? You’re in luck because today I’m sharing a recipe for an oatmeal smoothie that tastes just like you’re eating an old fashioned cinnamon oatmeal cookie but in smoothie form.

Why You Gotta Try This One

Woman (Brittany Mullins) wearing a white shirt and sipping a green smoothie.

I love a smoothie that feels like real breakfast, and this one does exactly that. It’s cozy, creamy, and gives big cinnamon-oat energy without requiring a single pot or pan. Just toss everything in the blender and you’re good to go. The oats make it thick and satisfying, and the fact that it’s packed with protein means you won’t be hungry again in an hour. Total win.

Ingredients Needed:

Ingredients measured out to make an oatmeal smoothie: vanilla protein powder, frozen banana, cinnamon, vanilla, oats and almond milk.

frozen banana – frozen banana helps to thicken this smoothie and adds a little sweetness. Be sure to check out my guide for how to freeze bananas.
unsweetened almond milk or oat milk – any milk will work, but I prefer almond milk or oat milk. If you want extra oat flavor and more creaminess, go for the oat milk!
old fashioned oats – you can’t have an oatmeal smoothie without oats! Be sure to grab gluten free oats if need be. My fave brand is Bob’s Red Mill gluten free old fashioned rolled oats.
vanilla protein powder – I love adding protein powder to my smoothies to make them more filling! I think the vanilla flavor blends really well with this particular smoothie. I like using Nuzest‘s smooth vanilla protein powder. You can use my code eatingbirdfood for 15% off your order.
cinnamon – for a bit of sweet spice and oatmeal cookie flavor!
pure vanilla extract – a great flavor enhancer!

Make It Your Own

Want to put your own spin on this oatmeal smoothie? Here are a few ideas to play with:

Add a nutty swirl: Blend in a spoonful of almond butter or peanut butter for extra richness and a flavor combo that’s super comforting.
Top it like a bowl: Pour your smoothie into a glass or bowl and add toppings like sliced banana, crushed walnuts, or a sprinkle of homemade granola for crunch.
Make it chocolatey: Add a teaspoon of cocoa powder or use chocolate protein powder to turn this into a chocolate oatmeal cookie smoothie. Trust me, it works.
Boost the nutrition: Want to level it up even more? Add chia seeds, flaxseed, or even a handful of spinach. You won’t taste it, but you’ll get all the extra benefits.

How to Make

This oatmeal smoothie is super quick and easy—perfect for busy mornings when you want something satisfying and nourishing.

Banana, milk, oats, protein powder, cinnamon, and vanilla in a blender.

Step 1: Add all your ingredients to a high-powered blender and blend until smooth.

Step 2: Pour into a glass or bowl and add your favorite toppings, if desired. Sip or spoon and enjoy!

Brittany’s Tip

Sweetness matters: The frozen banana adds natural sweetness, so if you’re skipping it or not replacing it with another sweet fruit, consider adding a little maple syrup, agave, honey, or stevia to balance the flavor.

If you enjoyed this recipe, please consider leaving a ⭐ star rating and let me know how it went in the 📝 comments below.

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4.59 from 34 votes

Oatmeal Smoothie

By: Brittany Mullins

This oatmeal smoothie is creamy, spiced with cinnamon, and naturally sweet from banana. It’s quick to make and loaded with over 20 grams of protein, making it a satisfying option for breakfast or post-workout fuel.

Prep Time: 5

Total Time: 5

Servings: 1

Ingredients

▢ 1 frozen banana, (chopped into chunks)
▢ ½ cup unsweetened almond milk , or oat milk, plus more as needed to reach desired consistency
▢ 3 Tablespoons old fashioned rolled oats
▢ 1 scoop (25 grams) vanilla protein powder, I used Nuzest
▢ ½ teaspoon cinnamon
▢ ½ teaspoon vanilla

Instructions

Place banana, milk, oats, protein powder, cinnamon, and vanilla in a high-powered blender and blend until smooth.
If the smoothie is too thick, add a little more milk.
Pour into a glass or bowl (depending on whether you want to use a spoon or straw) and top with your favorite smoothie toppings.

Notes

No banana? Frozen banana makes this smoothie sweet and creamy, but you’ve got options! Try using ice or frozen milk cubes for texture, or frozen cauliflower rice, frozen zucchini, or a bit of avocado for creaminess. Just note that if you skip the banana, you’ll likely want to add a little extra sweetener like maple syrup, honey, or dates.
Oats: Rolled oats or quick oats both work well and blend easily. Skip steel-cut oats, which are harder to blend and not ideal for smoothies.
Protein powder: I like vanilla protein powder here because it boosts the flavor and helps make the smoothie more filling.
Storage: This smoothie is best enjoyed right after blending, but you can store leftovers in a sealed jar in the fridge for up to 24 hours. Give it a good shake before drinking.

Nutrition

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

Equipment

blender

Like This Recipe? Rate & Comment Below!

An overhead view of an oatmeal smoothie in a mason jar.

Frequently Asked Questions

What is the best protein powder?

My favorite protein powder is Nuzest. It has a short ingredient list, clean ingredients, is allergen friendly and has no chalky taste! Use code eatingbirdfood for 15% off your order!

How can I add protein without using protein powder?

If you don’t have protein powder on hand, you can add protein in a variety of ways. You can mix in Greek yogurt, nuts, nut butter (cashew butter or almond butter would both be good options) or chia seeds.

How often can I eat a protein smoothie?

If you’re a smoothie fan, feel free to eat one once a day! Since they are a lighter option, I recommend enjoying them as a snack or for breakfast and not as a full meal replacement.

Are smoothies good for weight loss?

Yes! Protein smoothies are amazing for weight loss and weight management. My recipes are made with whole food ingredients and packed with nutrients and protein.

Why would you want to add more protein to your diet?

So many reasons! It’s great for balancing out your snacks and meals so you feel fuller and more satisfied. It can help you build muscle, increase energy and can help with weight management.

Can I meal prep this smoothie?

Yes! There are a couple of ways to meal prep a smoothie. If you’ll be enjoying it within 24 hours, you can make the smoothie as directed and store it in an airtight container in your refrigerator until you’re ready to enjoy it. Simply give it a shake or an additional blend before enjoying! You can also portion out the ingredients into containers so you’re ready to just dump and blend! When you’re ready to make your smoothie, you’ll just add the measured out ingredients into your blender and voila you’ve got a smoothie in seconds!