Blueberry Baked Oatmeal This hearty breakfast bake comes together quickly and is the perfect satisfying breakfast for a busy morning. The fresh berries add that fresh fruity flavor and a hint of sweetness we all love.
from votes
Today, I’m going to share with you the best healthy baked oatmeal with blueberries.
Do you ever have mornings where you want something hearty for breakfast but wish you can have most of the recipe prepared the night before? This blueberry oatmeal bake is just that! Plus making this recipe is simple and your oven does all the work!

This Blueberry Baked Oatmeal recipe tastes out of this world with a hearty, cake-like texture and baked blueberries in each bite.
As I share this recipe, I’ll also show you how to assemble it the night before and include tips to make sure you achieve perfect oatmeal bake results.

Blueberry Oatmeal Bake
We all want to provide our family with a nutritious meal to start the day, and this blueberry baked oatmeal is an incredibly delicious breakfast that will keep everyone full and energized for hours.
Oats are an excellent source of fiber and complex carbs, which help keep us feeling full and provide long-lasting energy.
There are so many things to make with oatmeal, like my overnight oats recipes and while single-serve oatmeal jars are practical, some mornings I feel like eating warm oats right out of the oven with a little milk over the top. Nothing beats that!
Blueberry Baked Oatmeal Ingredients
Ready to whip up your baked oatmeal? Run to the pantry and pull out these healthy ingredients:
- old-fashioned oats: for baked oatmeal recipes, old-fashioned oats work best. I don’t recommend steel-cut or instant.
- baking powder: helps the batter rise.
- salt: enhances the other flavors.
- honey: just enough to give the baked oatmeal a touch of sweetness.
- milk: use any milk or non-dairy alternative.
- egg: binds the batter ingredients and helps it rise.
- butter: flavor purposes and to moisten the baked oatmeal.
- vanilla: makes it more like cake!
- blueberries: infuses the oats with tangy-sweet berry flavor!
This recipe is successful with frozen or fresh blueberries, so you can make this any time of the year! Frozen and wild blueberries may give your oatmeal a purplish color, but the baked oatmeal will taste amazing either way.
How to Make Blueberry Baked Oatmeal
You’ll want to make this blueberry oatmeal bake every week for a healthy, satisfying breakfast, and it’s so easy to make! Here’s what to do:
Preheat the oven to 375F and lightly grease a square baking dish with cooking spray.
In a medium bowl, combine the oats, baking powder, and salt.
In a large bowl, combine the honey, milk, egg, melted butter, and vanilla extract. Add the oat mixture and stir to combine. Fold in the blueberries.
Pour the oat mixture into the baking dish. Bake for 35 minutes or until the top is golden and the oat mixture set.
Remove from the oven and allow to cool slightly before serving. Top your bowl with milk and your favorite toppings. (Lots of inspiration below!)
Watch how this recipe is made from start to finish:

I love creating versatile recipes like this baked oatmeal. I believe that preparing healthy and delicious meals for your family shouldn’t be a struggle and it’s meal ideas like this that make it possible.
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Blueberry Baked Oatmeal Toppings
Take your bowl of baked oatmeal up a notch with any of these yummy oatmeal toppings.
- sliced banana
- peanut/almond butter
- cold milk- just a splash over gives turns this into blueberries and cream baked oats!
- maple syrup
- chopped walnuts
- brown sugar
- cinnamon
Want more baked oatmeal flavors? If you’re a pumpkin spice fan, you’ll love my Pumpkin Baked Oatmeal Recipe, and the Cranberry Orange Baked Oatmeal Recipe never disappoints!
Baked Oatmeal Ingredient Substitutions
Baked oatmeal is easy to turn into an allergy-friendly breakfast. Oats are naturally gluten-free, and ingredient swaps below show you how to make this recipe egg and dairy-free.
- egg: use a flax egg instead. Mix 3 tablespoons warm water with 1 tablespoon ground flax. Wait 10 minutes until a gel-like mixture forms.
- butter: use equal parts coconut oil or vegan butter.
- milk: any unsweetened non-dairy milk works great. Almond, soy, rice, and even oat milk are fair game.
Make-Ahead Oatmeal Bake
To make this blueberry oatmeal bake ahead of time, measure out the dry ingredients and place them inside the baking dish. In a blender jar, combine the wet ingredients and refrigerate overnight. The next morning, add the wet ingredients to the baking dish, stir, and fold in the blueberries.
Bake as directed, and all that’s left is to grab a bowl and enjoy!
When you prep ahead this recipe takes less than 2 minutes to assemble in the morning, and while it’s baking, you can get everyone ready and prep your lunches.
Can You Freeze Baked Oatmeal
Baked oatmeal holds up well in the freezer and reheats with the same delicious flavor and texture you get when it’s fresh from the oven. The color might be a little more purple, but this usually isn’t an issue since the flavor is all there.
To freeze baked oatmeal, place single portions into freezer-safe containers and seal. Freeze for up to 2 months.
The night before you plan to serve it for breakfast, transfer the baked oatmeal to the fridge and let it thaw out. In the morning, reheat it in the microwave, and enjoy.
Best Baked Oatmeal Success Tips
Before you get to the kitchen, here are a few simple tips to make perfect baked oatmeal every time!
Use enough liquid
The oats need just enough liquid to soak up and turn into a cakey, bread pudding texture.
Don’t swap oats
This recipe uses old-fashioned oats. The large flakes soak up all the liquid and won’t dry out. Exchanging them for instant or steel-cut outs would require changing the other ingredient ratios.
Bake ahead
Want to bake this the night before? Good thinking. Prepare as directed and allow the baking dish to reach room temperature before covering with plastic wrap and refrigerating. Reheat the entire baking dish in the oven at 375F for 10 minutes or place a serving into a microwave-safe bowl and reheat for 1 to 2 minutes.

Blueberry Baked Oatmeal
Blueberry Baked Oatmeal This hearty breakfast bake comes together quickly and is the perfect satisfying breakfast for a busy morning. The fresh berries add that fresh fruity flavor and a hint of sweetness we all love.
from votes
Servings 8 servings
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Ingredients
- 2 cups rolled oats
- 1 teaspoon baking powder
- ½ teaspoon salt
- ¼ cup honey
- 2 cups milk
- 1 large egg
- 2 tablespoons butter, melted
- 2 teaspoons vanilla extract
- 1 ½ cup fresh or frozen blueberries
Instructions
Preheat the oven to 375F and grease a 9 x 9-inch square baking dish.
In a medium mixing bowl, combine oats, baking powder, and salt.
In a large bowl, combine honey, milk, egg, melted butter, and vanilla extract. Add oat mixture into the large bowl and mix all ingredients to form a thick oat batter. Add blueberries to the large bowl and fold with a spatula to combine.
Pour oatmeal mixture into the baking dish. Arrange blueberries to make sure they are evenly distributed throughout.
Baked 35 minutes in the preheated oven until the top is golden and the oat mixture is set. Remove from oven and allow the mixture to cool slightly before serving.
Equipment

Nutrition
Serving: 1 servingCalories: 182kcalCarbohydrates: 30gProtein: 6gFat: 5gSaturated Fat: 2gPolyunsaturated Fat: 1gMonounsaturated Fat: 1gTrans Fat: 0.1gCholesterol: 30mgSodium: 234mgPotassium: 213mgFiber: 3gSugar: 15gVitamin A: 257IUVitamin C: 3mgCalcium: 127mgIron: 1mg
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