This easy Oatmeal Smoothie is an ideal healthy breakfast for busy mornings. Ready in about two minutes with a blender, it’s filling, rich, and creamy — yet sugar-free and vegan. It works well for weight loss plans or higher-protein diets when you add a scoop of protein powder.
Alongside favorites like peanut butter banana smoothies, protein oatmeal, and banana oat pancakes, this oatmeal smoothie is my go-to after the gym when I need a quick refuel before starting the day. Add vanilla protein for a dessert-like treat that’s still nutritious.
Healthy oatmeal smoothie
This oatmeal breakfast smoothie is a simple, nutrient-dense way to start your morning. Naturally sweetened by banana and free of added sugar, it provides steady energy thanks to oats and their beta-glucan fiber, which supports digestion and can help lower cholesterol. The recipe pairs banana with peanut butter and a milk of your choice, and it adapts easily to many diets — high-protein, dairy-free, vegan, or gluten-free.
Ingredients
Below are the main ingredients with substitution options. Exact measurements are provided in the recipe card further down.
- Rolled oats. They thicken the smoothie and add fiber. Use gluten-free oats if needed or quick oats as a swap. Avoid steel-cut oats, which don’t blend well.
- Banana. Adds natural sweetness and creaminess; frozen bananas blend best. You can substitute other frozen fruit (blueberries, strawberries, mango), but the texture will be less creamy.
- Milk of choice. Unsweetened almond milk keeps calories low, but any dairy or plant milk (soy, oat, cow) works.
- Peanut butter. Choose creamy, unsweetened peanut butter for flavor and texture. Almond, cashew, or sunflower seed butter are good alternatives.
- Cinnamon & vanilla extract. Optional, but they enhance the flavor and pair perfectly with oats and banana.
- Pinch of salt. Balances and enhances overall flavor.
How to make oatmeal smoothie
Step 1 — Combine ingredients. Add frozen banana, rolled oats, peanut butter, milk and a pinch of salt to a high-speed blender. For extra flavor add vanilla extract and ground cinnamon. If your banana isn’t frozen, toss in a couple of ice cubes.
Step 2 — Blend. Blend on high until completely smooth and creamy with no chunks of banana or ice. Pour into a glass and serve, optionally topped with a sprinkle of oats and cinnamon.
Recipe variations
- High-protein. Add a scoop (about 30 g) of vanilla or chocolate protein powder. If it gets thick, add more milk. Great post-workout.
- Low-calorie. Use unsweetened almond milk and skip or replace peanut butter with powdered peanut butter (PB2). Adding protein powder helps you feel full longer when aiming for weight loss.
- Dairy-free & vegan. Use plant-based milk; the base recipe is already vegan.
- Gluten-free. Use oats labeled gluten-free to avoid cross-contamination.
- Mix-ins. Try a tablespoon of cocoa powder and a few dark chocolate chips for a chocolate version, or add blueberries, coffee powder, crumbled oatmeal cookies, or half an apple for different flavors.
Success tips
- Use frozen banana for thickness. Frozen banana makes the smoothie creamier and more refreshing.
- Sweeten as needed. A ripe banana often provides enough sweetness, but add a little maple syrup, honey, or a date if desired.
- Adjust texture. Add extra milk for a thinner drink or more oats/Greek yogurt for a thicker, more filling meal.
- Customize with mix-ins. Boost nutrition or flavor with flaxseed, chia, hemp hearts, spinach, or protein powder.
Storage directions
Prepare the smoothie fresh or make it ahead for meal prep. Store in an airtight jar in the refrigerator for up to 1–2 days. Shake well and add a splash of milk before drinking. For longer storage, freeze up to 2 months in a freezer-safe container or in ice cube trays; thaw overnight in the fridge or blend frozen cubes with a splash of milk to restore creaminess.
Frequently asked questions
Yes. Raw rolled or quick oats are safe to use without soaking or cooking. If you prefer an extra-smooth texture, soak them in water for 10 minutes before blending.
Yes. Quick oats work fine and blend easily, though they absorb liquid faster and may thicken the smoothie. Add more milk if needed.
Swap banana for frozen berries, mango, or apple, keeping in mind that banana gives the creamiest texture.
More healthy breakfasts with oats
- Microwave oatmeal
- Protein oatmeal
- Oatmeal protein cookies
- Overnight oats with yogurt
- Egg white oatmeal
- High-protein oatmeal bars
- Apple cinnamon oatmeal
- Low calorie oatmeal
Oatmeal Smoothie
Equipment
- high speed blender or food processor
Ingredients
- ⅓ cup (30 g) rolled oats, gluten-free if necessary
- 1 large banana, frozen recommended
- 2 tbsp peanut butter, creamy recommended
- a pinch of salt
- ½ cup (120 ml) unsweetened almond milk, or milk of choice
- 2–3 ice cubes, only if banana is not frozen
Optional Ingredients
- 1 scoop protein powder (add extra milk if necessary)
- 1–2 tsp maple syrup for a sweeter smoothie
- ¼ tsp vanilla extract
- ¼ tsp ground cinnamon
Instructions
- Add frozen banana, rolled oats, peanut butter, milk and a pinch of salt to a high-speed blender. Add vanilla and cinnamon if using.
- Add ice cubes if the banana is not frozen.
- Blend on high until smooth and creamy with no chunks remaining.
- Pour into a glass and enjoy.
Notes
- To store: Keep the smoothie in an airtight jar in the fridge for up to 48 hours. Shake and add a splash of milk before drinking.
- To freeze: Freeze up to 2 months in a freezer-safe container or ice cube tray. Thaw overnight in the fridge or blend frozen cubes with milk.
Nutrition
Calories: 342.2 kcal |
Carbohydrates: 55.2 g |
Protein: 9.4 g |
Fat: 11.6 g |
Saturated Fat: 2 g |
Fiber: 7.7 g |
Sugar: 18.6 g