Start your morning off with this thick and creamy Healthy Banana Oat Breakfast Smoothie! Packed with protein and easily made with wholesome ingredients in just 5 minutes to keep you feeling full and satisfied all morning long.

Looking for a quick, delicious breakfast to kick-start your day? You are going to love this banana oat smoothie recipe! Packed with creamy sweetness of ripe bananas, hint of cinnamon and the heartiness of oats, this smoothie is the perfect blend of flavor and nutrition. Whether you are rushing out the door or just craving a healthy snack, this smoothie is a delightful way to fuel your body with fiber, potassium and protein. Best part? This smoothie tastes like a delicious oatmeal cookie in liquid form!
Why You’ll Love This
- High Protein – packed with almost 12 grams of protein per smoothie thanks to the Greek yogurt and peanut butter.
- Loaded with Fiber – rolled oats and the flaxseed meal provide a great source of fiber to help keep you full all day long. I love drinking this first thing in the morning for a filling breakfast.
- Quick and Easy – you can easily make this banana smoothie recipe in just 5 minutes using a few simple ingredients. Perfect for those busy mornings.
- Customizable – throw in a scoop of your favorite protein powder, a handful of blueberries, or some chia seeds for an extra burst of goodness. So many different ways to enjoy this healthy oatmeal smoothie.

Ingredients You’ll Need
- rolled oats – we are using old-fashioned rolled oats (I used gluten-free oats) which are rich in fiber and help with digestion. Not only does this keep you full longer, but will also help keep you focused throughout the day. You could also use quick oats or instant oats.
- banana – you’ll need one ripe banana (fresh banana or frozen banana) which is a great source of potassium and adds natural sweetness without added sugar.
- greek yogurt – this makes the smoothie nice and creamy, while also being a great source of protein, probiotics and calcium.
- flaxseed meal – I love adding flaxseed to my smoothies because it’s a great plant-based protein and also packs in fiber and healthy fats.
- milk – I used unsweetened almond milk, but you can use any type of milk you like best such as oat milk, coconut milk or dairy milk.
- peanut butter – adds additional protein to this smoothie and delicious nutty flavor! You could also substitute the peanut butter for almond butter or any other type of nut butter.
- vanilla extract – just a half teaspoon of vanilla for an extra boost of flavor.
- cinnamon – a warm spice to round out these cozy flavors.
I don’t recommend using steel cut oats in this recipe as the raw oats are less processed and take longer to soften. However, here are two ways to use them in this smoothie if that’s all you have on hand:
- You could cook the steel cut oats beforehand for 10 to 15 minutes on the stove or microwave before adding them to the smoothie. Just make sure they cool beforehand.
- You could also soak the steel cut oats overnight in water or milk to soften them before adding them into your smoothie.
How to Make Banana Oat Smoothie
- Add to blender. Add your oats, banana, Greek yogurt, flaxseed meal, milk, vanilla cinnamon, and a little bit of peanut butter to a powerful blender or food processor.
- Blend ingredients. Blend everything until you get a creamy, smooth consistency. Feel free to add more milk if you prefer a thinner smoothie. Taste and adjust any ingredients as-needed for more flavor.
- Serve and enjoy. Pour into glasses or mason jars. Enjoy right away or store in the fridge for later!

Tips and Variations
- For a thicker smoothie: Use frozen bananas instead of a fresh bananas for a thicker smoothie or you could even add in a handful of ice cubes to thicken or even frozen cauliflower for an extra boost of nutrition and hidden veggies!
- Add protein powder: Boost the protein content even more by adding a scoop of your favorite protein powder such as whey protein powder or plant-based protein powder.
- Sweeten naturally: If you like a sweeter smoothie, add a little honey or maple syrup to taste. You could also add in more peanut butter for a peanut butter smoothie version.
- Vegan option: Make a vegan smoothie by using plant-based yogurt and plant-based milk or soy milk for a dairy-free version.
- Boost with greens: Sneaking in a handful of spinach or kale for a green smoothie is a great way to add extra nutrients without altering the flavor.
- Optional mix-ins: Try adding in some chia seeds, hemp seeds or even some fresh berries.
Prepping and Storage
To Store: This creamy banana oatmeal smoothie will last in your fridge in a sealed mason jar for about 2 to 3 days. For the best taste and smoother texture, I do recommend consuming this within 24 hours as the banana can start to brown and get mushy.
To Freeze: If you want this smoothie to last longer, you can freeze it for up to 1 month. Simply blend it, pour into a freezer-safe container and thaw when needed. I also like to freeze smaller portions into ice cube trays for the littles!

More Banana Recipes
More Healthy Breakfast Smoothies
Hope you all enjoy this Banana Oatmeal Smoothie recipe! If you love this as much as we do, please leave a ⭐️⭐️⭐️⭐️⭐️ star rating below and don’t forget to tag me on Instagram using the hashtag #eatyourselfskinny! Follow for more healthy recipes!
-
Add to blender: Add your oats, banana, Greek yogurt, flaxseed meal, milk, vanilla cinnamon, and a little bit of peanut butter to a powerful blender or food processor.
-
Blend ingredients: Blend everything until you get a creamy, smooth consistency. Feel free to add more milk if you prefer a thinner smoothie or a handful of ice for a thicker smoothie. Taste and adjust any ingredients as-needed for more flavor.
-
Serve and enjoy: Pour into glasses or mason jars. Enjoy right away or store in the fridge for later!
Serving: 1/2 of recipe | Calories: 213kcal | Carbohydrates: 28.8g | Protein: 11.3g | Fat: 6.9g | Saturated Fat: 0.6g | Sodium: 64.7mg | Fiber: 5.1g | Sugar: 8.3g
Nutrition information is automatically calculated, so should only be used as an approximation.