This banana oatmeal smoothie is one of the easiest ways to make a quick, filling breakfast with just a few basic ingredients. It comes together in minutes and has a smooth, creamy texture that feels more substantial than a typical smoothie.

The combination of banana and oats makes it naturally satisfying, while the almond milk keeps it light. A touch of vanilla adds just enough flavor without overpowering the simplicity of the recipe. It’s a dependable option for busy mornings, or anytime you want something simple that will keep you going for a few hours.

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Why This Smoothie Works
This smoothie works so well because of its simple, balanced ingredients. The banana gives it a naturally sweet flavor and creamy texture, while the oats add substance and make it more filling than a typical smoothie. The almond milk keeps everything smooth and easy to drink, and the vanilla adds a subtle hint of flavor. One small change makes a big difference. Using a frozen banana takes this smoothie from good to really exceptional. It creates a thicker texture and eliminates the need for ice, so the flavor stays rich and undiluted.

How to Freeze Bananas
- Remove the peel from 4 or 5 bananas
- Cut the bananas in half
- Place them on a parchment-lined baking sheet, making sure they aren’t touching
- Freeze for at least 24 hours
- Once frozen, transfer the banana pieces to a resealable bag or freezer-safe container

Ingredients
- Almond milk: I use Silk Unsweetened Almond Milk with 30 calories per cup. Oat milk, soy milk, or coconut milk can be substituted. If you don’t need a dairy-free smoothie, regular skim milk can be used as well.
- Oatmeal: either quick oats (instant) or old fashioned rolled oats work great.
- Banana: a large frozen banana works best.
- Vanilla bean paste: adds a flavorful, nutty taste. Feel free to use more than a teaspoon.

How to Make
- Combine all ingredients in a blender.
- Mix on low speed until the banana and/or ice are broken up.
- Mix on high speed for 1 minute.
- Serve immediately.

Tips for A Creamy Banana Oatmeal Smoothie
- Add the liquid first. When using frozen fruit, the order matters. Add the almond milk to the blender first, followed by the frozen banana. This helps everything blend more easily and prevents the blades from getting stuck.
- Blend the smoothie for at least one full minute so the oats are fully broken down. This creates a smoother texture and keeps the smoothie from feeling grainy.
- Use the best blender you have. Any blender will work, but a more powerful blender will give you a smoother result, especially when blending oats. If your smoothie isn’t as smooth as you’d like, simply blend it a little longer.

If you enjoy simple smoothies like this, you might also like my strawberry banana smoothie for something fruity and refreshing, or my citrus smoothie with orange and pineapple for a brighter flavor. You can also see all three recipes together in my collection of easy smoothie recipes, where everything is gathered in one place for quick and easy options.
Smoothie Making Supplies
- Freezer containers
- KitchenAid blender
- Black & Decker PowerCrush
- Striped straws
- Stemless glasses
- my favorite vanilla bean paste
- quart mason jars
Banana Oatmeal Smoothie Recipe
Ingredients
- 1 cup almond milk (unsweetened)
- 1 large banana (frozen is better)
- 1/4 cup old fashioned oats
- 1 teaspoon vanilla extract or vanilla bean paste
- 5-6 ice cubes (leave out if using frozen bananas)
Optional Ingredients
Instructions
- Combine all ingredients in a blender.
- Mix on low speed until the banana and/or ice are broken up.
- Mix on high speed for 1 minute.
- Serve immediately.
Notes
Nutrition information is automatically calculated, so should only be used as an approximation.
If you make this recipe, and love it, please come back to leave a comment and a 5-star review. I would really appreciate it, and it would help me so much. Thank you!


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Really yummy, simple to make, and refreshing! Thank you for the recipe!
Love this and that it has a base of healthy ingredients. My blender gave out and I haven’t replaced it, so I made it in the food processor the first time. The oats didn’t completely break down. This morning, I made it again, using a spare coffee grinder to grind the oats and then used the immersion blender to blend everything together. That worked nicely for me while in a blender less phase!
Delicious
I’m not necessarily trying to lose weight but I have a lot of “water weight” and baby fat still. I’m 14 and I have been changing my eating habits. I’m hoping this helps my ongoing hunger throughout the day. I also love this smoothie! It tastes so good and doesn’t have much sweetness. I did add some of Smuckers Natural Peanut Butter to give it a little bit more of a flavor.
Really good smoothie
I thoroughly enjoyed this.
I have to say, this is my absolute favorite diet smoothie above all. Most other smoothies just about make me gag BC of the taste and what not but this one was quite pleasant. I added all ingredients including the optional ones and the flavor at the end was great. Highly recommend :)
Just tried this and it is sooo good!! Thanks for sharing!!!
I made this and it was so good! Though I didn’t use oatmeal as I can’t eat it but instead I used 1/4 cup of sliced toasted almonds and it’s amazing!
I absolutely love the oatmeal banana smoothie. The drink really fills me up. Thank you for sharing.
Cindee