Easy Blueberry Baked Oatmeal with Greek Yogurt

Blueberry Baked Oatmeal is a warm, wholesome breakfast made with rolled oats, juicy blueberries, Greek yogurt, eggs, milk, cinnamon, and a touch of maple syrup. It has a soft, lightly custardy center with golden edges and bursts of sweet fruit in every bite.

Blueberry Baked Oatmeal is filling, easy to prepare, and perfect for busy mornings, weekend brunch, or weekly meal prep. The Greek yogurt adds creaminess and protein, while oats provide a satisfying texture that keeps breakfast simple and comforting.

Prep Time: 15 minutes

Cook Time: 35 to 40 minutes
Rest Time: 10 minutes
Total Time: About 1 hour
Servings: 8

Ingredients

For the Oatmeal

• 3 cups old-fashioned rolled oats
• 2 teaspoons baking powder
• 1 1/2 teaspoons ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/2 teaspoon salt
• 2 large eggs
• 1 1/2 cups milk
• 1 cup plain Greek yogurt
• 1/3 cup pure maple syrup or honey
• 2 tablespoons melted butter or coconut oil
• 2 teaspoons vanilla extract
• 1 teaspoon fresh lemon zest
• 2 cups fresh or frozen blueberries

Ingredients For the Topping

• 1/2 cup fresh blueberries
• 1/3 cup chopped walnuts or pecans
• 2 tablespoons rolled oats
• 1 tablespoon maple syrup
• 1/2 teaspoon cinnamon

For Serving

• Extra Greek yogurt
• Fresh blueberries
• Maple syrup or honey
• Chopped nuts
• Fresh lemon zest

Why You’ll Love This Recipe

Blueberry Baked Oatmeal is easy to prepare and uses simple ingredients that are easy to keep in your kitchen. Everything is mixed in one bowl before being transferred to the baking dish.

Another reason to love Blueberry Baked Oatmeal is its flexibility. You can use fresh or frozen fruit, change the nuts, adjust the sweetness, or add other flavors such as lemon, vanilla, or almond.

This recipe is also convenient for meal prep. One baking dish provides several portions that can be refrigerated and reheated throughout the week.

How to Make Blueberry Baked Oatmeal

Step 1: Preheat the Oven

Preheat the oven to 350°F or 175°C.

Lightly grease a 9 x 9-inch baking dish or a similar medium-size casserole dish with butter or cooking spray.

Step 2: Mix the Dry Ingredients

Add the rolled oats to a large mixing bowl.

Stir in baking powder, cinnamon, nutmeg, and salt.

Mixing the dry ingredients first helps distribute the spices evenly throughout the finished breakfast.

Step 3: Prepare the Wet Ingredients

In a separate bowl, whisk the eggs until smooth.

Add milk, Greek yogurt, maple syrup, melted butter, vanilla extract, and lemon zest.

Whisk until everything is well combined.

A few small streaks of yogurt are fine and will disappear as the oatmeal bakes.

Step 4: Combine Wet and Dry Ingredients

Pour the wet mixture over the oats.

Stir slowly until all the oats are moistened.

The mixture for Blueberry Baked Oatmeal should look moist but not watery. The oats will absorb more liquid as they rest and bake.

Step 5: Add the Blueberries

Fold 2 cups of blueberries gently into the oat mixture.

If using frozen berries, add them directly from the freezer. There is no need to thaw them first.

Avoid stirring too aggressively because frozen blueberries can release color into the batter.

Step 6: Transfer to the Baking Dish

Pour the oatmeal mixture into the prepared baking dish.

Spread it into an even layer with a spatula or spoon.

Let the mixture sit for about 5 minutes before adding the topping.

For the best Blueberry Baked Oatmeal texture, this short resting period gives the oats time to begin absorbing the liquid.

Step 7: Add the Topping

Scatter the remaining blueberries over the surface.

Sprinkle with chopped walnuts or pecans and the extra rolled oats.

Lightly drizzle maple syrup over the top and finish with a little cinnamon.

Step 8: Bake

Place the baking dish in the center of the preheated oven.

Bake for 35 to 40 minutes.

Blueberry Baked Oatmeal is ready when the center looks set, the edges are lightly golden, and the berries are soft and juicy.

Step 9: Rest Before Serving

Remove the baking dish from the oven.

Allow it to rest for about 10 minutes.

This gives the oats time to finish absorbing moisture and makes the portions easier to cut.

Step 10: Slice and Serve

Cut the baked oatmeal into squares.

Serve warm with a spoonful of Greek yogurt, fresh blueberries, chopped nuts, or a small drizzle of maple syrup.

Serving Suggestions

Blueberry Baked Oatmeal can be served warm, at room temperature, or chilled depending on your preference.

For a fuller breakfast, pair Blueberry Baked Oatmeal with fresh fruit, nuts, boiled eggs, or an extra spoonful of Greek yogurt.

For brunch, arrange it on a table with strawberries, bananas, yogurt, nut butter, honey, and maple syrup so everyone can customize their serving.

A cup of coffee, tea, or cold milk also pairs beautifully with this breakfast.

If you want a simple wholesome snack, try these 3-Ingredient Banana Peanut Butter Oat Cookies – Easy, Healthy Treat made with banana, peanut butter, and oats.

Recipe Tips

Use old-fashioned rolled oats rather than instant oats. Rolled oats provide a better chewy texture and hold their shape during baking.

For the best Blueberry Baked Oatmeal, avoid using steel-cut oats unless you significantly adjust the liquid and cooking time.

If using frozen blueberries, do not thaw them first. Adding them frozen prevents the mixture from becoming overly purple or watery.

Use thick Greek yogurt for extra creaminess.

Do not overbake. The center should be set but still moist.

Let the dish rest before cutting so the pieces hold together more easily.

Taste your blueberries before adding extra sweetener. Very sweet berries may require less maple syrup.

Easy Variations

Blueberry Baked Oatmeal can be adapted with different fruits and flavors.

Replace some of the blueberries with raspberries, strawberries, or blackberries for a mixed berry version.

To make Blueberry Baked Oatmeal more citrusy, add extra lemon zest or a small amount of orange zest.

For extra crunch, add almonds, pecans, walnuts, pumpkin seeds, or sunflower seeds.

You can also stir in a tablespoon of chia seeds or ground flaxseed.

For a banana variation, mash one ripe banana into the wet ingredients and reduce the maple syrup slightly.

If you enjoy warm spices, add a pinch of ginger or cardamom.

For a warm and cozy drink, try this Cinnamon Apple Tea with comforting apple and cinnamon flavor that pairs beautifully with breakfast or a light snack.

Make-Ahead Instructions

Blueberry Baked Oatmeal is excellent for meal prep because it stores and reheats well.

You can assemble the oat mixture the night before. Cover the baking dish and refrigerate overnight.

In the morning, let it sit at room temperature while the oven preheats, then bake as directed.

You may need to add 5 minutes to the cooking time if the mixture is very cold.

Another option is to bake the entire dish ahead, cool completely, and divide it into individual containers.

Storage and Reheating

Store leftover Blueberry Baked Oatmeal in an airtight container in the refrigerator for up to 5 days.

To reheat, microwave an individual portion for 30 to 60 seconds.

You can also place several servings in a covered baking dish and warm them at 325°F or 165°C until heated through.

Add a splash of milk before reheating if you prefer a softer texture.

To freeze, wrap individual portions tightly and store them for up to 2 months.

Thaw overnight in the refrigerator before reheating.

Nutrition Information

Approximate nutrition per serving:

Calories: 290
Protein: 10 g
Carbohydrates: 44 g
Fat: 9 g
Saturated Fat: 3 g
Fiber: 6 g
Sugar: 15 g
Sodium: 230 mg

Nutrition values are estimates and may vary depending on the milk, Greek yogurt, sweetener, nuts, and portion sizes used.

Frequently Asked Questions

Can I make Blueberry Baked Oatmeal with frozen blueberries?

Yes. Frozen blueberries work very well. Add them straight from the freezer and increase the baking time by a few minutes if necessary.

Can I use quick oats?

You can, but the finished texture will be softer. Old-fashioned rolled oats produce the best structure.

Can I use dairy-free milk?

Yes. Almond, oat, soy, or coconut milk can replace regular milk.

Can I replace Greek yogurt?

Plain regular yogurt or a thick dairy-free yogurt can work. Sour cream can also be used, although it creates a richer flavor.

Can I make this recipe without eggs?

Yes. You can try flax eggs or another suitable egg substitute. The finished oatmeal may be slightly softer.

How can I make it sweeter?

Add extra maple syrup or honey to the wet mixture, or drizzle a small amount over each serving.

Can I add protein powder?

Yes. Add a small amount of vanilla or unflavored protein powder. You may need an extra splash of milk because protein powder can absorb moisture.

Final Thoughts

Blueberry Baked Oatmeal is a simple way to turn oats, fruit, yogurt, and eggs into a satisfying homemade breakfast.

The combination of juicy berries, creamy Greek yogurt, cinnamon, vanilla, and wholesome rolled oats creates a breakfast that feels comforting without requiring much active preparation.

Because Blueberry Baked Oatmeal can be prepared ahead, it works especially well for busy mornings, weekend brunches, and weekly meal prep.

Keep Blueberry Baked Oatmeal in your breakfast rotation whenever you want a wholesome baked breakfast that is easy, fruity, filling, and convenient to prepare in advance.