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If you’re looking for an easy, affordable, fiber-packed breakfast you can prep in minutes, this blueberry overnight oatmeal checks every box.
Made with whole-grain oats, antioxidant-rich blueberries, and naturally sweetened with ripe banana, this blueberry overnight oatmeal recipe is creamy, satisfying, and perfect for busy mornings. In less than 5 minutes, you can prep a few jars on Sunday and have a healthy breakfast ready all week.
Whether you’re searching for blueberry overnight oats for meal prep, a nutritious high-fiber breakfast, or simply a way to use up fresh or frozen blueberries, this recipe delivers.
Quick Look at the Recipe
Prep Time: 5 minutes
Chill Time: At least 6 hours (overnight)
Servings: 1 jar (easy to scale for the week)
Method: No-cook, refrigerator
Highlights: High fiber, naturally sweetened, vegan, gluten-free option, meal-prep friendly
Where My Love for Blueberries Really Took Off!
Blueberries are easily one of my favorite fruits. I use them almost daily — in my blueberry smoothie, tossed into salads like my detox mason jar salad, and especially in this blueberry overnight oatmeal sweetened with banana.
Living in Buffalo, New York, blueberry season only lasts about 2–3 weeks each year. Because of that, I mostly rely on frozen organic blueberries. I’ll grab large bags from Costco or BJ’s, or if I get motivated during peak season, I’ll freeze fresh-picked berries so I can use them year-round.
Frozen berries work beautifully in this recipe because as they thaw, their juices release right into the oats, giving you that rich blueberry flavor without any extra effort.
If you’re using overnight oats to lose weight, this is a fantastic base recipe. It’s naturally sweetened, high in fiber, and keeps you full. And if you want to increase the protein, you can easily stir in cottage cheese like I do in my cottage cheese overnight oats or Greek yogurt like in my overnight oats with yogurt recipe.
I’ve made plenty of fruity overnight oats over the years – strawberry banana overnight oats, strawberry cheesecake overnight oats, cherry overnight oats, raspberry overnight oats – but if I had to choose one I make most often, this blueberry overnight oats recipe is definitely at the top of my list.
Enjoy!
Ingredients
You’ll find the exact measurements in the recipe card below, but here’s why each ingredient matters.
- Rolled Oats. Old-fashioned rolled oats are the only oats I recommend for overnight oats. Instant oats turn mushy, and steel-cut oats stay too firm. Rolled oats absorb the liquid perfectly and create that creamy texture overnight. If you’re gluten-sensitive, make sure to purchase certified gluten-free oats.
- Chia Seeds. Chia seeds are my go-to superfood for overnight oats. They add fiber, plant-based protein, and omega-3 fatty acids, but what I really love is the texture they create. Without chia seeds, overnight oats tend to be softer and almost mushy. With them, you get that thick, pudding-like consistency.
- Almond Milk (or Milk of Choice). I typically use unsweetened almond or coconut milk because that’s what I keep on hand for smoothies. But you can absolutely use dairy milk or even a high-protein dairy milk if you want to increase the protein content.
- Banana. Mashed ripe banana sweetens this recipe naturally so you don’t need refined sugar. I often freeze ripe bananas so I always have them ready for overnight oats or smoothies.
- Vanilla Extract. Not required, but highly recommended. It adds warmth and depth. If you’re out, the recipe will still work just fine.
- Blueberries. Fresh or frozen both work. I mostly use frozen because they’re affordable and the juices release overnight, giving the oatmeal incredible blueberry flavor. If you have fresh berries, you can freeze the blueberries yourself to enjoy year-round.
Want the Same Ingredients & Supplies I Use?
If you’re curious about the exact brands of oats, chia seeds, jars, and superfoods I use for my overnight oats recipes, you can browse my Amazon storefront. I keep all of my favorite pantry staples and meal prep supplies organized there to make it easy.
How to Make Blueberry Overnight Oatmeal (Step-by-Step)
Step 1: Mix the Base. In a 16-ounce mason jar (or container with a lid), combine the rolled oats, chia seeds, almond milk, vanilla extract, and mashed banana. Stir everything really well so the oats are fully submerged in liquid. Any dry oats sitting above the milk won’t soften properly overnight, so take an extra few seconds here to mix thoroughly.
Step 2: Add the Blueberries. Gently place the blueberries on top. If you’re using frozen blueberries, there’s no need to thaw them first. They’ll slowly thaw overnight and release juices directly into the oats, giving you that beautiful purple swirl in the morning.
Step 3: Refrigerate. Seal the jar tightly and refrigerate for at least 6 hours or overnight. During this time, the oats soften, the chia seeds thicken the mixture, the banana sweetens everything naturally, and the blueberries infuse flavor throughout.
Step 4: Adjust & Enjoy. In the morning, give everything a good stir. Overnight oats always thicken in the fridge, so if it feels too thick for your liking, add a splash of milk and stir until you reach your desired consistency. Taste it before adding any sweetener – the banana usually does the job, but you can stir in 1–2 teaspoons of pure maple syrup if needed.
Expert Tips
- I love using 16-ounce jars because they’re perfect for portion control and grab-and-go mornings, but you don’t have to prep them individually. You can easily double, triple, or even quadruple this blueberry overnight oatmeal recipe and mix everything together in a larger sealed glass container. In the morning, just scoop out the portion you want and add a splash of milk if needed. This is a great option if you’re feeding multiple people or just prefer not to prep separate jars ahead of time.
- If you want to increase the protein without changing the flavor too much, you can stir in a couple of tablespoons of Greek yogurt or about ¼ cup of cottage cheese. Both options add protein and creaminess. If you prefer powders, you can mix in collagen or an unflavored protein powder — just start small and add a splash of extra milk if the oats become too thick.
- You can also boost the nutrition by adding other superfoods. Hemp hearts, ground flaxseed, a spoonful of nut butter, or even a sprinkle of cinnamon all work well with blueberries. Just remember that every add-in slightly changes the texture, so adjust the liquid as needed to keep it creamy.
How to Store Blueberry Overnight Oatmeal
Overnight oats are meant to be made ahead. Store sealed jars in the refrigerator for up to 4 days. They’re best on days 1–3, but still safe and tasty on day 4. The longer they sit, the thicker they become. Just stir in a splash of milk to loosen them up.
You can also freeze dry overnight oat kits (oats, chia, blueberries). When ready to eat, add milk and banana, refrigerate overnight, and enjoy the next morning.
Blueberry Overnight Oatmeal
If you’re looking for an easy, affordable, fiber-packed breakfast you can prep in minutes, this blueberry overnight oatmeal checks every box.Made with whole-grain oats, antioxidant-rich blueberries, and naturally sweetened with ripe banana, this blueberry overnight oatmeal recipe is creamy, satisfying, and perfect for busy mornings. In less than 5 minutes, you can prep a few jars on Sunday and have a healthy breakfast ready all week.
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Course: Breakfast, breakfast recipe
Cuisine: American
Keyword: blueberry banana overnight oats, blueberry overnight oatmeal, blueberry overnight oats, blueberry overnight oats recipe
Prep Time: 5 minutes
Cook Time: 8 hours
Total Time: 8 hours 5 minutes
Servings: 1 person
Calories: 288kcal
Equipment
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16-ounce mason jars
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mason jar lids
Ingredients
- 1/2 cup rolled oats
- 1 teaspoon chia seeds
- 1/2 cup unsweetened almond milk or use your favorite milk
- 1/4 teaspoon pure vanilla extract
- 1/2 of a small banana mashed
- 1/2 cup of blueberries fresh or frozen
- pure maple syrup optional
Instructions
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In a 16-ounce mason jar comine and mix the rolled oats, chia seeds, unsweetened coconut milk, vanilla extract, and mashed banana.
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Place the blueberries on top of the oats.
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Tightly place the lid on the mason jar and store it in the refrigerator overnight.
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Stir the oats and add in extra liquid or pure maple syrup to loosen up the oats. Enjoy it cold.
Notes
How to Store
Overnight oats are meant to be prepared ahead of time. Store the jars in the refrigerator for up to 4 days. Please note the more prolonged the oats are in the fridge, the thicker they will be, so you’ll likely need to add more liquid to loosen them up.
You can also prepare the dry overnight oat ingredients and freeze them into packets. Then, when you’re ready to make the oatmeal, just pour the dry ingredients into a jar, add milk, and continue with the recipe.
Nutrition
Serving: 1g | Calories: 288kcal | Carbohydrates: 54g | Protein: 8g | Fat: 6g | Saturated Fat: 1g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 2g | Trans Fat: 0.01g | Sodium: 167mg | Potassium: 433mg | Fiber: 9g | Sugar: 15g | Vitamin A: 80IU | Vitamin C: 12mg | Calcium: 204mg | Iron: 2mg
Did you make this recipe?
If you tried this blueberry overnight oatmeal recipe, I’d love to hear how it turned out! Leave a comment and star rating below — it helps others find the recipe and gives them confidence to try it. And if you added your own twist, share it!
About Tammy Overhoff
Hi, I’m Tammy Overhoff, a busy mom, wife, and entrepreneur. I am the owner, author, and recipe developer here at Organize Yourself Skinny. Since 2011 Organize Yourself Skinny has become a trusted resource for clean eating recipes to meal prep, reviews, and lifestyle hacks to help you fit healthy habits and routines into your busy schedule. Check out my online shop Reset & Flourish for all of my eBooks, Guides, and Bundles!
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