
Looking for a smoothie that’s quick, filling, and naturally sweet? You’re in the right place. This 3-Ingredient Banana Oat Smoothie is the kind of recipe that makes mornings smoother—literally. With just a banana, some oats, and a splash of milk, you’ve got a creamy, drinkable breakfast that tastes like comfort in a glass. Even better, it comes together in under five minutes, no fancy ingredients required.
Not only is it easy to make, but it’s also easy to love. Because bananas and oats are both naturally sweet and satisfying, you won’t miss the extra sugar. Plus, since oats add fiber and texture, you’ll stay full longer—making this a go-to for busy mornings or post-workout fuel.
Fun fact: smoothies as we know them took off in the U.S. during the 1960s, thanks to the rise of health food stores and blender culture. Now, they’re a kitchen staple—and this version proves less really can be more.
So, whether you’re blending for breakfast or a midday snack, this one’s about to be on repeat.

Recipe Yield: 1 serving
INGREDIENTS
1 banana (ripe to very ripe)
¼ cup rolled oats
1 cup milk (dairy, oat, almond, or soy)
INSTRUCTIONS
1. Add ingredients to blender: Pour in the milk first, followed by the oats and banana. This layering helps it blend ultra-smooth.
2. Blend until creamy: Blend on high speed for 60 seconds until smooth and frothy. Scrape down the sides if needed.
3. Taste and tweak (optional): Want it thicker? Add a few ice cubes or frozen banana slices. Need it sweeter? Add a dash of maple syrup or honey, but with a ripe banana, you likely won’t need to.
4. Serve it up: Pour into a glass and enjoy right away—or refrigerate for 10 minutes for an even creamier texture.
Helpful Tips to Perfect This Recipe
- Choose ripe bananas – The riper the banana, the sweeter and more flavorful the smoothie. Brown spots? Even better!
- Make it thicker – Blend with frozen banana or a few ice cubes for a milkshake-like texture.
- Add-ins that blend beautifully – A pinch of cinnamon, splash of vanilla extract, or tablespoon of nut butter add depth without complicating things.
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