Blueberry Banana Baked Oatmeal

Blueberry Banana Baked Oatmeal is one of those easy, make-ahead breakfasts that feels like a little win for the week. It comes together with simple pantry staples in just a few minutes of prep, then bakes into a hearty, satisfying breakfast packed with rolled oats, juicy blueberries, sweet bananas, and warm cinnamon. This healthy baked oatmeal is naturally sweetened and perfect for busy mornings when you want something wholesome and filling ready to go.

If you’re tired of rushed mornings and boring breakfasts, this blueberry banana baked oatmeal is a simple make-ahead option you’ll actually look forward to eating. I love making overnight oats in a jar, but this recipe gives you multiple servings at once and is just as easy to serve in the morning. I love baking a pan at the beginning of the week and knowing there’s something delicious ready to grab each morning. Just warm up a slice and breakfast is basically done.

The oats bake up soft and tender, the blueberries burst with sweet flavor, and the bananas add natural sweetness throughout. It’s comforting, filling, and one of those simple recipes that makes busy mornings feel a whole lot easier.

What to Know Before You Start

• Soft, cake-like texture. This baked oatmeal is moist and tender, more like a breakfast casserole than a bowl of traditional oatmeal.
• Ready in about 40 minutes. Only a few minutes of prep are needed before the oven takes over.
• Naturally sweet but not overly sugary. Ripe bananas and a little maple syrup provide balanced sweetness.
• Great for make-ahead breakfasts. Bake once and enjoy easy grab-and-go portions throughout the week.
• Easy to customize. Change up the milk, fruit, nuts, or mix-ins to fit your preferences and what you have on hand.
• Freezer friendly. Individual portions freeze and reheat well, making it a convenient option for busy mornings.

What Is Baked Oatmeal?

If you’ve never tried baked oatmeal before, think of it as a cross between traditional oatmeal and a breakfast casserole. Instead of cooking oats on the stovetop, everything bakes together until soft, tender, and lightly golden.

Unlike stovetop oatmeal, it isn’t soft and gooey. The texture is more like a moist muffin, with plenty of hearty oat texture in every bite. It’s sturdy enough to slice and serve, and it’s one of my favorite make-ahead breakfasts because it reheats beautifully throughout the week.

Unlike traditional oatmeal, baked oatmeal can be sliced into portions, making it perfect for meal prep and easy weekday breakfasts. This baked oatmeal with blueberries and bananas is one of my favorite breakfasts to prep ahead for busy weeks.

Ingredients You’ll Need

• Rolled oats. Old-fashioned rolled oats create the best texture for baked oatmeal. They become tender while still holding their shape.
• Baking powder. Helps lighten the texture so the oatmeal doesn’t feel too dense.
• Ground cinnamon. Adds warmth and complements both the blueberries and banana.
• Salt. A small amount balances the sweetness and enhances the overall flavor.
• Pecans. Add a little crunch and nutty flavor. Walnuts work well too.
• Fresh blueberries. Burst as they bake and add sweet pockets of juicy fruit throughout the oatmeal.
• Banana. Adds natural sweetness and helps create a soft, tender texture.
• Egg. Binds everything together and gives the oatmeal structure.
• Maple syrup. Sweetens the oatmeal while adding a subtle maple flavor.
• Vanilla extract. Brings warmth and rounds out the flavors.
• Coconut milk. Creates a rich texture, but any milk works well in this recipe, including almond milk, oat milk, soy milk, or dairy milk.

How to Make Blueberry Banana Baked Oatmeal

This blueberry banana baked oatmeal comes together with a simple mix-and-bake method that requires very little hands-on time.

Step 1: Prepare the baking dish

Preheat the oven to 375°F. Grease an 8-inch square baking dish with coconut oil or nonstick cooking spray to help prevent sticking.

Step 2: Mix the dry ingredients

In a large bowl, combine the rolled oats, baking powder, cinnamon, salt, and pecans. Stir until everything is evenly distributed, then transfer the mixture to the prepared baking dish and spread it into an even layer.

Step 3: Add the fruit

Scatter the blueberries and sliced banana evenly over the oat mixture, gently pressing some of the fruit down into the oats.

Pro Tip: Distributing the fruit evenly helps ensure every serving gets plenty of blueberries and banana.

Step 4: Mix the wet ingredients

In a small bowl, whisk together the egg, maple syrup, vanilla extract, and coconut milk until smooth and fully combined.

Step 5: Assemble and bake

Slowly pour the milk mixture evenly over the oats and fruit, making sure all of the oats are moistened. If needed, gently tap the baking dish on the counter to help the liquid settle throughout the mixture.

Bake for 30 to 35 minutes, until the center is set and the top is lightly golden brown.

Pro Tip: The oatmeal should look set in the center and no longer appear wet before removing it from the oven. If the top is browning too quickly, loosely cover the dish with foil for the remaining bake time.

Step 6: Cool and serve

Let the baked oatmeal cool for 5 to 10 minutes before serving. This short resting time helps it firm up slightly, making it easier to slice and serve.

Expert Tips

• Use ripe bananas. Bananas with plenty of brown spots provide the best flavor and natural sweetness.
• Choose the right oats. Old-fashioned rolled oats create the best texture. Quick oats will be softer, and steel-cut oats won’t work in this recipe.
• Use frozen blueberries straight from the freezer. There’s no need to thaw them first.
• Moisten all of the oats. Make sure the liquid is evenly distributed so the oatmeal bakes consistently.
• Let it rest before serving. A 5 to 10 minute rest helps the oatmeal finish setting and makes it easier to slice.

Variations and Substitutions

• Use a different milk. Almond milk, oat milk, soy milk, or dairy milk all work well.
• Swap the fruit. Try raspberries, blackberries, strawberries, diced apples, or peaches.
• Change the nuts. Walnuts or sliced almonds can be used instead of pecans, or leave them out completely.
• Add extra texture. Stir in chia seeds, ground flaxseed, or shredded coconut.
• Make it your own. Add a handful of chocolate chips or a pinch of nutmeg for a fun flavor twist.

Serving Ideas

This baked oatmeal is delicious on its own, but toppings are an easy way to change it up throughout the week.

Serve it with:

• Greek yogurt and extra fresh blueberries
• A drizzle of maple syrup
• Almond butter or peanut butter
• Sliced bananas and chopped pecans
• Fresh fruit salad
• Scrambled eggs for a more filling breakfast

Storage, Freezing and Reheating

• Refrigerator: Store leftovers in an airtight container in the refrigerator for up to 5 days.
• Freezer: Slice into individual portions and freeze in airtight containers or freezer-safe bags for up to 3 months.
• Reheating: Microwave individual portions for 30 to 60 seconds or warm them in a 300°F oven until heated through.
• Make-ahead tip: Bake the oatmeal on Sunday and enjoy easy breakfasts throughout the week.

Frequently Asked Questions

Can you use frozen blueberries in baked oatmeal?

Yes. You can use frozen blueberries in baked oatmeal without thawing them first. Stir them directly into the oat mixture before baking. Frozen blueberries may add a few extra minutes to the baking time, but they work just as well as fresh blueberries.

How long does baked oatmeal last in the refrigerator?

Store blueberry banana baked oatmeal in an airtight container in the refrigerator for up to 5 days. Let it cool completely before storing. Reheat individual portions in the microwave or enjoy them cold for an easy breakfast.

Can you freeze baked oatmeal?

Yes. Baked oatmeal freezes well for up to 3 months. Cut it into individual portions, wrap them tightly, and store them in a freezer-safe container or bag. Thaw overnight in the refrigerator or reheat directly from frozen.

Can you make baked oatmeal dairy-free?

Yes. This blueberry banana baked oatmeal is naturally dairy-free when made with coconut milk or another plant-based milk such as almond milk, oat milk, or soy milk.

Can I use quick oats instead of rolled oats?

Yes, but the texture will be softer and less hearty. Old-fashioned rolled oats are the best choice for this recipe because they hold their shape and create the classic texture most people expect from baked oatmeal.

More Oatmeal Recipes You’ll Love

Whether you’re meal prepping breakfast for the week or looking for new ways to enjoy oats, these oatmeal recipes are worth adding to your rotation:

• Baked Oatmeal Cups with Blueberries – Individual oatmeal cups packed with blueberries that are perfect for grab-and-go breakfasts and meal prep.
• Baked Apple Oatmeal – Warm cinnamon-spiced oatmeal filled with tender apples for a comforting breakfast that tastes like fall.
• Peanut Butter Banana Oatmeal – Creamy oatmeal with peanut butter and banana for a hearty breakfast packed with flavor and staying power.
• Peach Cobbler Oatmeal – A cozy bowl of oatmeal inspired by peach cobbler, complete with juicy peaches and warm spices.
• Strawberries and Cream Oatmeal – Fresh strawberries and creamy oats come together for an easy breakfast that’s simple enough for weekdays but feels a little special.

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