Banana Bread Overnight Oats

Featured in: Holiday Breakfasts

This dish blends hearty old-fashioned oats with ripe mashed bananas, warm cinnamon, and a hint of vanilla, all softened overnight in milk and yogurt. Chilling allows flavors to meld, producing a creamy, wholesome texture. Topped with crunchy walnuts and fresh banana slices, this make-ahead breakfast offers a balanced mix of textures and flavors. It's easy to prepare and perfect for busy mornings seeking a nutritious start.

Updated on Sun, 15 Feb 2026 15:21:00 GMT
Creamy Banana Bread Overnight Oats with Walnuts in a jar, topped with banana slices and crunchy walnuts, drizzled with maple syrup. Save It
Creamy Banana Bread Overnight Oats with Walnuts in a jar, topped with banana slices and crunchy walnuts, drizzled with maple syrup. | zetluna.com

One Saturday morning, I stood in my kitchen staring at three overripe bananas on the counter, wondering if banana bread was worth firing up the oven in summer heat. Instead, I grabbed a jar and started layering oats with mashed banana and yogurt, thinking of it as a cold, no-bake shortcut. By the next morning, something magical had happened—the oats had softened into creamy clouds that tasted like banana bread's breakfast cousin, spiced just right and ready to eat straight from the fridge.

I made this for my sister during a weekend visit, and she actually asked for the recipe before leaving—which, coming from someone who barely eats breakfast, felt like winning something. She said she loved being able to grab it straight from the fridge without any fuss, and the walnut crunch reminded her of the good parts of banana bread without the heaviness. That simple request made me realize how much a thoughtful breakfast can matter to someone's day.

Ingredients

  • Old-fashioned rolled oats (1 cup): These are your base, and they matter more than you'd think—instant oats will turn mushy, but old-fashioned ones soak up liquid while keeping some texture intact.
  • Milk (1 cup): Dairy or plant-based both work beautifully; the milk hydrates the oats and creates that creamy, custard-like consistency overnight.
  • Plain Greek yogurt (1/2 cup): This adds tang, creaminess, and protein that keeps you satisfied; don't skip it even if you're using non-dairy, because it really changes the texture.
  • Ripe banana, mashed (1): Choose one that's spotted and soft for maximum sweetness and flavor; underripe bananas won't give you that real banana bread taste.
  • Maple syrup or honey (1 tablespoon): Just enough sweetness to echo banana bread without making it cloying; taste as you go and adjust if your banana is especially sweet.
  • Ground cinnamon (1/2 teaspoon): The secret ingredient that makes people say it tastes like banana bread—don't measure with a light hand here.
  • Pure vanilla extract (1/4 teaspoon): A small amount goes a long way to deepen the flavor and make everything taste more intentional.
  • Salt (pinch): A tiny bit brightens all the flavors and prevents the sweetness from feeling flat.
  • Chopped walnuts (1/4 cup): Toast them lightly in a dry pan before adding if you want them extra crispy and flavorful, or keep them raw for a softer bite.
  • Fresh banana for topping (1 small): Slice this just before serving so it doesn't brown and lose its appeal.

Instructions

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Combine Your Base:
In a bowl or straight into your jars, stir together the oats, milk, yogurt, mashed banana, maple syrup, cinnamon, vanilla, and salt until everything is evenly mixed with no dry oat bits hiding at the bottom. This takes less than two minutes, but really make sure the banana is well distributed so you get that flavor in every spoonful.
Divide Into Containers:
Spoon the mixture evenly between two jars or glass containers—mason jars work perfectly and look nice when you're eating straight from them. Cover them tightly with lids or plastic wrap so the oats don't dry out in the fridge.
Let Time Do the Work:
Refrigerate overnight, or for at least six hours while you sleep or go about your day. The oats will gradually absorb all the liquid and the flavors will meld together into something that tastes way more intentional than the sum of its parts.
Wake Up and Customize:
In the morning, give the oats a good stir to bring everything back together, then taste it. If it feels too thick, splash in a little more milk and stir until it reaches your ideal consistency—some people like it spoon-thick, others prefer it closer to pudding.
Top and Serve:
Sprinkle chopped walnuts over the top, add fresh banana slices, drizzle with a touch more maple syrup if you're feeling it, and dust with cinnamon. You can eat it straight from the fridge or let it sit on the counter for fifteen minutes if you prefer it less cold.
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There's something deeply satisfying about eating a beautiful, thoughtfully made breakfast without any morning stress. My partner now asks me to make extra jars on Sunday so he can grab one on the way to early meetings, which feels like the highest compliment a breakfast can receive.

The Magic of Overnight Soaking

What makes this recipe work isn't any special technique—it's just patience and liquid. When oats sit in milk and yogurt overnight, they absorb all that moisture and transform from hard grains into something creamy and almost pudding-like without ever touching a stove. The cold also mellows out the oats' texture in a way that's impossible to achieve by cooking them hot. I used to think overnight oats were just a trend, but once I understood the actual chemistry happening, I stopped fighting it and started planning my breakfasts around it.

Why Banana and Walnut Matter Together

If banana is the star of this dish, walnuts are the supporting actor that makes the whole thing sing. The slight earthiness and crunch of walnuts against creamy oats and sweet banana creates this textural contrast that keeps you interested bite after bite. I learned this from actual banana bread, where walnuts aren't just an add-on—they're essential to the whole experience. The two ingredients work together to create something that feels richer and more intentional than either one could on its own.

Make-Ahead Wisdom and Last-Minute Touches

The beauty of this recipe is that you can prepare it up to three days in advance, which means you get to feel organized without actually doing much work. Store it covered in the fridge and stir it well before eating each time. The one thing I never make ahead is the fresh banana topping—those slices go on just before you eat so they stay bright and don't turn brown and sad.

  • If you forget to add toppings before refrigerating, they'll actually blend into the oats and still taste amazing.
  • A drizzle of nut butter on top adds richness and makes it feel even more indulgent than it already is.
  • This keeps beautifully for three days, so Sunday prep means a peaceful rest of your week.
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Wholesome overnight oats with mashed banana, cinnamon, and Greek yogurt, garnished with toasted walnuts and fresh banana slices. Save It
Wholesome overnight oats with mashed banana, cinnamon, and Greek yogurt, garnished with toasted walnuts and fresh banana slices. | zetluna.com

This breakfast has become my favorite way to use ripe bananas without feeling like I'm eating dessert in the morning. It's the kind of recipe that works just as well on a quiet Tuesday as it does when you're feeding guests and want to seem more organized than you actually are.

Common Questions About Recipes

Can I use plant-based milk and yogurt?

Yes, plant-based alternatives work well and keep the dish vegan-friendly while maintaining creaminess.

How long should the mixture chill?

A minimum of 6 hours or overnight is ideal for the oats to soften and absorb the flavors fully.

Can I substitute walnuts with other nuts or seeds?

Absolutely, pumpkin or sunflower seeds make great nut-free alternatives with similar crunch.

Is it possible to adjust sweetness?

Yes, you can vary maple syrup or honey quantities to suit your taste preferences.

How do I store leftovers?

Keep any leftover portions refrigerated in airtight containers for up to 2 days for freshness.

Can chia seeds be added?

Adding a tablespoon of chia seeds is a great way to boost fiber and texture in the mixture.

Banana Bread Overnight Oats

Wholesome oats blended with banana, cinnamon, and walnuts, chilled overnight for a creamy, hearty breakfast.

Prep Time
10 mins
Time to Cook
360 mins
Overall Time
370 mins
Authored by Clara

Recipe Type Holiday Breakfasts

Skill Level Required Easy

Cuisine Type American

Recipe Output 2 Number of Portions

Dietary Needs Veggie-Friendly

The Ingredients You'll Need

Oats Mixture

01 1 cup old-fashioned rolled oats
02 1 cup milk, dairy or unsweetened plant-based
03 1/2 cup plain Greek yogurt or non-dairy alternative
04 1 ripe banana, mashed
05 1 tablespoon maple syrup or honey
06 1/2 teaspoon ground cinnamon
07 1/4 teaspoon pure vanilla extract
08 Pinch of salt

Toppings

01 1/4 cup chopped walnuts
02 1 small banana, sliced
03 Maple syrup or honey for drizzling, optional
04 Pinch of ground cinnamon, optional

Step-by-Step Instructions

Step 01

Combine Base Mixture: In a medium bowl or jar, combine oats, milk, yogurt, mashed banana, maple syrup, cinnamon, vanilla extract, and salt. Stir thoroughly until well combined.

Step 02

Divide into Portions: Divide the mixture evenly between two jars or containers.

Step 03

Refrigerate Overnight: Cover and refrigerate overnight, allowing at least 6 hours for the oats to soften and fully absorb the flavors.

Step 04

Adjust Consistency: In the morning, stir the oats thoroughly. Add additional milk if a thinner consistency is preferred.

Step 05

Add Toppings: Top each serving with chopped walnuts, banana slices, a drizzle of maple syrup, and a sprinkle of cinnamon as desired.

Step 06

Serve: Serve chilled or at room temperature.

Tools You'll Need

  • Mixing bowl or jars
  • Spoon
  • Measuring cups and spoons
  • Refrigerator

Allergy Information

Review each ingredient to identify allergens and consult an expert if needed.
  • Contains tree nuts, specifically walnuts
  • Contains dairy from milk and yogurt; use non-dairy alternatives for vegan or lactose-free options
  • Oats may be cross-contaminated with gluten; use certified gluten-free oats if necessary
  • Always verify product labels for additional allergen information

Nutritional Facts (Per Serving)

Keep in mind these details are for general guidance and shouldn't replace professional advice.
  • Caloric Content: 340
  • Fats: 13 grams
  • Carbohydrates: 48 grams
  • Proteins: 10 grams