If you’re looking for an energizing, easy, and absolutely delicious breakfast to savor on busy mornings, look no further than this Blueberry Baked Oatmeal. Brimming with sweet, juicy blueberries and a nutty kiss from almond butter, this wholesome recipe is perfect for meal prep or holiday brunches. Each square is hearty, naturally sweetened, family-friendly, and ready in a snap. Trust me, this dish turns every morning into a little celebration of flavor.

Ingredients You’ll Need
Gathering the ingredients for Blueberry Baked Oatmeal is about keeping things simple and nourishing. Each component truly shines here, playing a special role in flavor, texture, or vibrant color. Let’s look at the lineup that transforms a handful of staples into something magical.
- Rolled Oats: The backbone of this recipe, providing a chewy, heart-healthy base and making the bake satisfyingly filling.
- Almond Butter: Adds richness and subtle nutty flavor while helping bind the oatmeal bars together; feel free to swap with your favorite nut or seed butter.
- Bananas: Mashed bananas naturally sweeten the mix and lend moisture, keeping each bite tender and almost cake-like.
- Blueberries: The real stars! Blueberries burst with sweetness and a pop of color—fresh or frozen both work beautifully.
- Optional Honey or Maple Syrup: For those who love a little extra sweetness, a drizzle of your choice deepens the flavor and balances the oats.
- Milk (if needed): Adjust the batter consistency to just right; any non-dairy or regular milk will do the trick.
- Walnuts or Mix-Ins (optional): A handful of nuts on top adds crunch and a rustic, bakery-style finish to your Blueberry Baked Oatmeal.
How to Make Blueberry Baked Oatmeal
Step 1: Prep Your Pan and Oven
Start by preheating your oven to 180C or 350F, ensuring it’s piping hot and ready for baking. Line an 8 x 8-inch baking pan with parchment paper for easy lifting and cleanup later on—your future self will thank you.
Step 2: Mash the Bananas
Grab a large mixing bowl and toss in your bananas. Mash them thoroughly with a fork or potato masher until mostly smooth with just a few small lumps remaining; this gives your Blueberry Baked Oatmeal natural sweetness and a moist crumb.
Step 3: Combine the Wet and Dry Ingredients
Add the rolled oats and almond butter to the mashed banana. If you’re using honey or maple syrup, pour it in now. Mix vigorously until everything is well incorporated and you have a thick, almost doughy batter.
Step 4: Fold in the Blueberries
Gently fold in half of your blueberries using a rubber spatula, reserving the rest for topping. If you find the batter is a bit stiff, splash in a little milk until it’s just spreadable. Too runny? Just a sprinkle more oats will do the trick.
Step 5: Spread, Top, and Bake
Transfer the batter into your prepared pan, smoothing the top out evenly. Scatter on the remaining blueberries, along with walnuts or your favorite mix-ins if desired. Bake for 15 minutes, or until the edges turn golden and a skewer poked into the center comes out nearly clean.
Step 6: Cool and Slice
Once baked, let your Blueberry Baked Oatmeal cool in the pan for at least 15 minutes. This step is key for setting the bars. Carefully transfer to a wire rack and let cool completely before slicing and serving—or sneaking a warm square if you simply can’t wait!
How to Serve Blueberry Baked Oatmeal

Garnishes
Dress up each serving with a dusting of powdered sugar, a drizzle of warm almond butter, extra blueberries, or even a dollop of creamy yogurt for a touch of tanginess. The garnishes truly make Blueberry Baked Oatmeal feel special and inviting.
Side Dishes
This dish is hearty enough to shine on its own, but if you’re serving brunch for a crowd, pair it with crispy turkey bacon, a fruit salad, or a frothy latte. For lighter mornings, a bowl of Greek yogurt works wonders alongside your slice.
Creative Ways to Present
Try layering cubes of Blueberry Baked Oatmeal in glass jars with whipped yogurt and extra fruit for a portable parfait. Or, cut them into fingers to tuck into lunchboxes. You can even crumble a square over vanilla ice cream for an impromptu dessert twist!
Make Ahead and Storage
Storing Leftovers
Store any leftover Blueberry Baked Oatmeal in an airtight container in the refrigerator. It stays fresh and moist for up to five days, making it a grab-and-go breakfast that’s actually delicious all week long.
Freezing
You can absolutely freeze this baked oatmeal! Slice it into portions, wrap tightly in plastic wrap or parchment, then pop into a freezer-safe bag. Thaw overnight in the fridge for best results, and enjoy the flavors whenever you please.
Reheating
To reheat, simply microwave an individual square for 30 seconds to a minute, or warm several servings in a low oven. This revives both the soft crumb and the juicy blueberry burst, making your Blueberry Baked Oatmeal taste freshly-baked even days later.
FAQs
Can I use frozen blueberries instead of fresh?
Absolutely! Frozen blueberries work just as well as fresh, though they may tint the oatmeal a deeper purple. No need to thaw—just fold them in straight from the freezer.
Is this recipe gluten-free?
As long as you use certified gluten-free rolled oats, your Blueberry Baked Oatmeal will be completely gluten-free and safe for those with sensitivities.
What can I substitute for almond butter?
Feel free to swap almond butter with any nut or seed butter you love—peanut, sunflower seed, or cashew are all excellent and add their own subtle flavors to the oats.
How do I know when the oatmeal is done baking?
Look for golden-brown edges and check the center with a skewer or toothpick. If it comes out mostly clean (a few moist crumbs are fine), your Blueberry Baked Oatmeal is perfectly baked.
Can I double this recipe?
Definitely! Just use a larger baking dish and extend the baking time a little, keeping an eye on the color and testing for doneness as you go.
Final Thoughts
Whether you’re planning ahead or just craving something cozy and satisfying, I hope you give Blueberry Baked Oatmeal a try. Each bite brims with love, warmth, and the simple joy of homemade comfort food. Your breakfast table will thank you!
Print
Blueberry Breakfast Quesadilla Recipe
- Total Time: 16 minutes
- Yield: 9 servings
- Diet: Vegetarian
Description
This Blueberry Baked Oatmeal is a wholesome, one-bowl breakfast that’s ready in only 16 minutes. Featuring rolled oats, sweet bananas, creamy almond butter, and juicy blueberries, this recipe delivers soft, chewy baked squares that make breakfast both nutritious and delicious. Perfect for meal prep or a quick morning start, it’s naturally gluten-free and can be made vegan or nut-free as needed.
Ingredients
Main Ingredients
- 2 cups rolled oats (use gluten-free if needed)
- 1/2 cup almond butter (or any nut or seed butter)
- 2 large bananas, mashed
- 1/2 cup blueberries, divided
Optional Add-ins
- Honey or maple syrup, to taste
- Milk (dairy or non-dairy), as needed to thin the batter
- Extra rolled oats, as needed to thicken the batter
- Walnuts or other mix-ins, for topping
Instructions
- Preheat and Prepare Pan: Preheat your oven to 180°C (350°F). Line an 8 x 8-inch baking pan with parchment paper to ensure easy removal of the baked oatmeal, then set aside.
- Mix Wet and Dry Ingredients: In a large mixing bowl, combine the mashed bananas, rolled oats, almond butter, and optional honey or maple syrup. Stir until fully blended and smooth.
- Incorporate Blueberries: Gently fold in half of the blueberries with a rubber spatula, ensuring they are evenly distributed throughout the batter. Check the consistency—if it’s too thick, add a splash of milk; if it’s too thin, sprinkle in extra oats.
- Transfer and Top: Spoon the batter into the prepared pan, spreading it evenly. Scatter the remaining blueberries over the top and sprinkle walnuts or any preferred mix-ins for added texture and crunch.
- Bake: Bake in the preheated oven for 15 minutes, or until the edges are golden brown and a skewer inserted in the center comes out mostly clean.
- Cool and Serve: Remove the baked oatmeal from the oven. Allow it to cool in the pan for 15 minutes before lifting it out and transferring to a wire rack to cool completely. Slice and enjoy warm or at room temperature.
Notes
- Feel free to substitute almond butter with peanut butter, sunflower seed butter, or tahini for allergy-friendly options.
- If you prefer your baked oatmeal sweeter, add a tablespoon or two of honey or maple syrup to the batter.
- Frozen blueberries can be used; add them straight from the freezer to prevent excess bleeding.
- These bars can be stored in an airtight container in the fridge for up to 5 days or frozen for up to 2 months.
- You can customize your toppings with shredded coconut, chocolate chips, or seeds for extra flavor and nutrition.
- Prep Time: 1 minute
- Cook Time: 15 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 square
- Calories: 208 kcal
- Sugar: 6 g
- Sodium: 70 mg
- Fat: 9 g
- Saturated Fat: 1 g
- Unsaturated Fat: 8 g
- Trans Fat: 0 g
- Carbohydrates: 28 g
- Fiber: 4 g
- Protein: 5 g
- Cholesterol: 0 mg