Looking for a nutritious, make-ahead breakfast that keeps you full and energized? Blueberry Walnut Overnight Oats offer the perfect blend of creamy oats, juicy blueberries, and crunchy walnuts. This wholesome recipe is not only delicious but also packed with fiber, antioxidants, and healthy fats, making it a smart choice for busy mornings.
Why You’ll Love This Recipe
Blueberry Walnut Overnight Oats combine the simplicity of preparation with the benefits of a healthy breakfast. They require no cooking, can be made in advance, and are fully customizable to suit your taste and dietary needs. The combination of oats, blueberries, and walnuts provides a balanced meal with complex carbs, vitamins, and omega-3 fatty acids. Whether you’re preparing breakfast for a busy workweek or just want to streamline your mornings, this recipe delivers both convenience and nourishment.
ingredients
(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)
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Rolled oats
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Milk (dairy or non-dairy alternatives like almond, oat, or soy milk)
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Greek yogurt (optional, for extra creaminess and protein)
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Fresh or frozen blueberries
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Chopped walnuts
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Honey or maple syrup (for natural sweetness)
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Chia seeds (optional, for added texture and fiber)
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Vanilla extract
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Pinch of salt
directions
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In a mason jar or airtight container, combine rolled oats, milk, and yogurt (if using).
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Add blueberries, chopped walnuts, chia seeds, honey or maple syrup, vanilla extract, and a pinch of salt.
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Stir well until all ingredients are evenly combined.
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Seal the container and refrigerate overnight, or for at least 6 hours.
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In the morning, give the oats a good stir. Add a splash of milk if needed to loosen the texture.
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Serve chilled, or warm briefly in the microwave if preferred.
Servings and timing
This recipe yields 1 to 2 servings, depending on portion size.
Prep Time: 5 minutes
Chill Time: Minimum 6 hours or overnight
Total Time: 6 hours 5 minutes
Variations
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Nut-free version: Replace walnuts with sunflower or pumpkin seeds.
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Vegan option: Use plant-based milk and yogurt, and opt for maple syrup instead of honey.
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Berry mix: Combine blueberries with raspberries or strawberries for variety.
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Spiced oats: Add a pinch of cinnamon or nutmeg for a warm flavor twist.
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Protein boost: Stir in a scoop of protein powder or use high-protein Greek yogurt.
storage/reheating
Store overnight oats in a sealed container in the refrigerator for up to 4 days.
To reheat, place in a microwave-safe bowl and warm in 30-second intervals, stirring in between, until desired temperature is reached.
If the mixture thickens too much, simply add a bit more milk before serving.
FAQs
How long do overnight oats last in the fridge?
Overnight oats can last up to 4 days when stored in an airtight container in the refrigerator.
Can I use quick oats instead of rolled oats?
Yes, but the texture will be softer and less chewy. Rolled oats are preferred for better consistency.
Are overnight oats healthy?
Yes, they are a balanced meal rich in fiber, protein, and healthy fats, especially when made with wholesome ingredients like blueberries and walnuts.
Can I use frozen blueberries?
Absolutely. Frozen blueberries work well and will thaw overnight in the oats, adding flavor and color.
What type of milk is best?
Any milk can be used—dairy or plant-based. Choose one that fits your dietary needs and flavor preference.
Do I have to use yogurt?
No, yogurt is optional. It adds creaminess and protein but can be omitted or replaced with a dairy-free alternative.
Can I make a larger batch for the week?
Yes, you can multiply the recipe and store individual portions in jars for quick grab-and-go breakfasts.
How do I make it sweeter without added sugar?
Use mashed banana or a few chopped dates as a natural sweetener alternative.
Can I eat overnight oats warm?
Yes, while traditionally served cold, they can be warmed in the microwave for a comforting option.
Are walnuts necessary?
No, but they add a great crunch and provide healthy fats. You can substitute them with another nut or seed, or leave them out entirely.
Conclusion
Blueberry Walnut Overnight Oats are a perfect solution for anyone seeking a quick, healthy, and delicious breakfast. With minimal prep time and maximum flavor, this recipe caters to a wide range of dietary needs and preferences. Whether you enjoy them cold or warm, sweetened or natural, these oats make mornings easier and more enjoyable. Prepare them the night before and wake up to a satisfying meal ready to fuel your day.

Blueberry Walnut Overnight Oats
- Author: Sarra
- Prep Time: 5 minutes
- Cook Time: 0 minutes
- Total Time: 5 minutes (plus chill time)
- Yield: 1 serving 1x
- Category: Breakfast
- Method: No-Cook, Chill
- Cuisine: American
Description
These Blueberry Walnut Overnight Oats are a healthy, make-ahead breakfast packed with fiber, protein, and omega-3s. With juicy blueberries, crunchy walnuts, and hearty oats soaked in milk and yogurt, they’re deliciously satisfying and perfect for busy mornings.
Ingredients
- 1/2 cup rolled oats
- 1/2 cup milk of choice (dairy or non-dairy)
- 1/4 cup plain or vanilla Greek yogurt
- 1 tablespoon chia seeds or ground flaxseed
- 1–2 teaspoons honey or maple syrup (optional)
- 1/3 cup fresh or frozen blueberries
- 2 tablespoons chopped walnuts
- 1/2 teaspoon vanilla extract (optional)
- Pinch of cinnamon and salt
Instructions
- Mix Ingredients:
- In a jar or container, stir together oats, milk, yogurt, chia seeds, sweetener, vanilla, cinnamon, and salt.
- Add Toppings:
- Gently stir in blueberries and walnuts or add them on top.
- Refrigerate Overnight:
- Cover and refrigerate for at least 4 hours or overnight until thick and creamy.
- Serve:
- Stir before serving. Enjoy cold or warm with an extra splash of milk if desired.
Notes
- Frozen blueberries work great and naturally sweeten as they thaw.
- Add protein powder for a boost or nut butter for creaminess.
- For meal prep, make 2–3 jars at once to last all week.
Nutrition
- Calories: 320 kcal
- Sugar: 10g
- Sodium: 90mg
- Fat: 14g
- Saturated Fat: 2g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 6g
- Protein: 12g
- Cholesterol: 5mg
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