
This post may contain affiliate links. Please read my disclosure policy.

About This Recipe
Let’s be honest, who doesn’t love a classic strawberry banana smoothie? Well, if you love the combination of sweet bananas and tart strawberries blended to creamy perfection, this healthy Strawberry Banana Oat Smoothie is for you! Packed with fiber-rich whole grains, naturally sweet bananas, and juicy strawberries, this smoothie is both refreshing and filling. It’s perfect for a quick breakfast, post-workout fuel, or a midday snack. Plus, it’s kid and adult friendly so you can make a large blender and share all around!
And the best part about this healthy breakfast smoothie? It comes together in just minutes! Just like my Peanut Butter and Jelly Smoothie, this recipe is perfect for when you’re needing something quick if you accidentally hit the snooze button one too many times.
And if you’re craving something a little sweeter but still high in protein, try my cookies and cream protein shake or birthday cake protein shake!

Why You’ll Love This Delicious Strawberry Banana Oat Smoothie
- No protein powder! This smoothie packs over 18g of quality protein without using protein powder.
- Packed with fiber! A sneaky 5g of fiber in here making it easy to reach your fiber goals!
- Made with simple ingredients so you can make at a moments notice!
- Make this easy recipe in just 5 minutes. Perfect for on-the-go or hectic mornings!
- Perfect for a quick breakfast, post-workout snack or refreshing afternoon treat

- Frozen strawberries: You can also use a frozen berry mix or any other frozen fruit you want!
- Frozen bananas: Frozen banana brings an amazing thick texture to smoothies that’s harder to achieve using frozen berries alone. The best sub is frozen avocado or frozen mango (banana adds sweetness so if using avocado you may need to adjust amount of sweetener used)
- Milk: Any milk works, dairy or nondairy, I used 2% cow’s milk but you can use almond milk, cashew milk, oat milk, etc.
- Vanilla greek yogurt: Use your favorite vanilla or plain greek yogurt! The yogurt helps to thicken the smoothie, while giving it a creamy texture and adding protein. You can also sub the greek yogurt for cottage cheese like in the Peanut Butter and Jelly Smoothie. You can also skip completely and just use more milk.
- Ground flaxseed: Not only does it add fiber but adding ground flax to smoothies also makes them taste better by creating a more luscious texture! Make sure flax seeds are ground or it won’t work. In a pinch you can sub with hemp seeds or chia seeds.
- Oats: I love adding oats to smoothies because they help thicken then up while also adding gut-friendly fiber. You can use quick oats or old fashioned oats. I just don’t recommend using steel cut oats or the texture won’t be right.
- Liquid stevia: I love using liquid stevia to make this smoothie as sweet as I like. There is no weird artificial taste with this liquid stevia (just don’t over do with how much you add). You can also add a squeeze of honey, maple syrup or another sweetener you prefer. Stevia is much sweetener than regular sweeteners so adjust accordingly and use this stevia equivalency chart if needed.
- Protein powder: If you want to increase the amount of protein, add a scoop of your favorite protein powder. If using a flavored protein powder like vanilla, you might not need as much liquid stevia (just taste before adding and adjust based on your taste preference). You can also sub some of the milk with your favorite protein shake.
- Peanut butter: Add some creamy peanut butter or almond butter to add extra healthy fats and protein (personally not a fan of chunks in my smoothies).
- Greens: Throw in some spinach or kale for a great way to sneak some extra greens into your day!
- Make vegan: Use non-dairy milk and non-dairy Greek yogurt.
How To Make
The full printable recipe is below, but let me walk you through the process so you know what to expect when you’re making it!

1. To a blender or food processor, add the frozen strawberries, banana, milk, greek yogurt, oats and sweetener.

2. Blend until smooth, stopping once to scrape down the sides. Taste, and if needed, add more sweetener and reblend. Pour into a glass. Top with some whip if desired and enjoy!
This smoothie is best enjoyed fresh. You can store in for a few hours in the refrigerator but just not it won’t be as thick and creamy.
Helpful Tips
- Adjust Consistency: If the smoothie is too thick, add a bit more milk or water to reach your desired consistency. If it’s too thin, you can add a bit more frozen fruit.
- Use Frozen Fruit: Frozen strawberries and banana will give your smoothie a thicker texture and chill it without needing ice. Fresh fruit works too, but you might want to add a few ice cubes.
- Use a high-powered blender: For the smoothest texture, I recommend using a high-speed blender like the Ninja IQ or Vitamix and using the highest speed setting.
- Ripe bananas: Try to make sure your bananas that are ripe or over-ripe for natural sweetness. Smoothies are one of my favorite ways to use up any fruit once it starts to go bad. To save for later, just chop your strawberries and peel the banana and add to a freezer bag. Then you can throw them in your smoothie whenever you go to make one and you didn’t end wasting anything!

Can I use fresh fruit instead of frozen fruit for this strawberry banana oat smoothie recipe?
Yes, you can use fresh fruit for this recipe if you need to. If using fresh fruit, use 1/4-1/2 cup of ice.
Do I need to add ice to my smoothie?
If you’re using frozen berries and frozen banana you do not need to add extra ice (unless you just want to). I love using frozen fruit so the smoothie gets nice, thick and creamy without being icy.
Can I prep this strawberry banana oatmeal breakfast smoothie in advance?
If you need to save time when making this smoothie, you can put everything but the frozen strawberries and banana in the blender (or an airtight container) the night before and refrigerate. When ready to enjoy, add the frozen fruit, blend and enjoy!
Did you make this? If you snap a photo, please be sure leave a review, tag me on Instagram or TikTok at @LaurenFitFoodie or hashtag #LaurenFitFoodie so I can see your creations!

Strawberry Banana Oat Smoothie
Ingredients
- 3/4 cup frozen strawberries (105g)
- 1/2 small frozen banana (50g) sliced
- 3/4 cup milk (180g) I used 2%
- 1/4 cup vanilla Greek yogurt (60g) or more milk
- 1 Tbsp ground flaxseed (7g) optional
- 1/4 cup oats (20g) quick or old fashioned
- 1/4 tsp liquid stevia or 2 Tbsp honey
Before You Begin! If you make this, please leave a review and rating letting us know how you liked this recipe! This helps our business thrive & continue providing free recipes. Scroll for macros and MyFitnessPal code.
Instructions
- To a blender or food processor, add the frozen strawberries, banana, milk, greek yogurt, oats and sweetener. Blend until smooth, stopping once to scrape down the sides.
- Taste, and if needed, add more sweetener and reblend.
- Pour into a glass. Top with some whip if desired and enjoy!
Notes
- Adjust Consistency: If the smoothie is too thick, add a bit more milk or water to reach your desired consistency. If it’s too thin, you can add a bit more frozen fruit.
- Use Frozen Fruit: Frozen strawberries and banana will give your smoothie a thicker texture and chill it without needing ice. Fresh fruit works too, but you might want to add a few ice cubes.
- Use a high-powered blender: For the smoothest texture, I recommend using a high-speed blender like the Ninja IQ or Vitamix and using the highest speed setting.
- Ripe bananas: Try to make sure your bananas that are ripe or over-ripe for natural sweetness. Smoothies are one of my favorite ways to use up any fruit once it starts to go bad. To save for later, just chop your strawberries and peel the banana and add to a freezer bag. Then you can throw them in your smoothie whenever you go to make one and you didn’t end wasting anything!
Nutrition Information
Nutrition is hand-calculated and accurate. No autocalulations! However, note that values can vary based on the brands you use and if you substitute ingredients.