Name: Blueberry Baked Oatmeal with Greek Yogurt
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Cuisine: American
Ingredients: 2 ripe bananas; 1½ cups rolled oats; 2 cups blueberries fresh or frozen; 1 cup Greek yogurt; ½ cup milk; ¼ cup honey; 1 large egg; ¼ cup walnuts chopped; 1 teaspoon baking powder; 1 teaspoon cinnamon; 1 teaspoon vanilla extract; 1 pinch salt optional

This Blueberry Baked Oatmeal bakes up soft, creamy, and naturally sweet, so you get a healthy breakfast that tastes comforting, satisfying, and simple enough to prep ahead for the week.

For more healthy breakfast recipes, see our strawberry overnight oats, banana chocolate chip muffins, healthy blueberry muffins, and blueberry chia pudding.

Why you’ll love this blueberry baked oatmeal!

This Blueberry Baked Oatmeal caught both Louise and me off guard. While I was creating it, I kept asking myself: how do I make this with the fewest dirty dishes possible? The solution was straightforward: one bowl and one baking dish 🫐.

That’s all. And somehow, it came out exactly right.
This blueberry baked oatmeal with Greek yogurt bakes into a soft, custardy texture while staying firm enough to slice, lightly sweet, and packed with juicy berries. It tastes a bit special, yet it’s simple enough for a calm weekday morning.

It’s fiber-rich and protein-rich, using oats, fresh fruit, and yogurt that suit a balanced, Mediterranean-style way of eating 💛. It feels comforting, but it still stays nourishing.

We like it warm with a drizzle of maple syrup. It reheats perfectly and also works as an easy, better-for-you dessert 🍰.

Lee Harsh

Ingredients

Completed Full ingredients and substitutions are in the recipe box below.

Ripe bananas: use them to bind the oats while adding natural sweetness. Bananas contribute natural sweetness as they ripen.
Rolled oats: they supply structure and chew in blueberry baked oatmeal. When gluten matters, use certified gluten-free oats. Quick oats can substitute in a pinch, but the result bakes softer and more compact.
Blueberries: they deliver juicy bursts of flavor throughout. Fresh or frozen both work. If you need a change, use raspberries, chopped strawberries, or mixed berries.
Greek yogurt: it keeps blueberry baked oatmeal moist and creates a creamy texture. For even more protein, choose low-fat Greek yogurt or Skyr instead.
Milk: it keeps everything tender during baking. Dairy milk works, and so do unsweetened almond, soy, or oat milk.
Honey: it adds gentle sweetness without overpowering. Maple syrup or mashed dates can replace honey.
Egg: it helps the mixture set so you can slice cleanly. For an egg-free version, replace the egg with a flax egg.
Walnuts: they add crunch and contrast. Pecans, almonds, pistachios, or pumpkin seeds work as swaps.
Baking powder: it gives light lift and prevents a dense texture. Do not skip.
Cinnamon and vanilla: they add warmth and depth to the flavor.

How to make Blueberry Baked Oatmeal with Greek Yogurt

1) Preheat and prepare

Heat the oven to 375°F (190°C). After this, Grease an 8 x 8 inch, 9 x 9 inch, or similar 2-quart baking dish. An 11 x 7 inch dish also works. If you use a slightly smaller dish, the oatmeal bakes up thicker and may need a few extra minutes.

2) Mash and mix all the wet ingredients

After this, In a large bowl, mash the bananas until mostly smooth.
Add the milk, Greek yogurt, honey, vanilla, and egg, then whisk until creamy and well combined.

3) Add the oats and blueberries

Mix in the rolled oats, cinnamon, baking powder, and salt. Keep stirring until you no longer see dry oats, especially at the edges of the bowl.
Fold in half of the blueberries gently to support a soft, moist blueberry baked oatmeal texture.

4) Transfer and top

Scrape the mixture into the prepared baking dish and level the surface evenly.
Add the remaining blueberries on top, then sprinkle with chopped walnuts or pecans.

5) Bake and rest

Bake at 375°F (190°C) for 35-40 minutes, until the center is set and the top is lightly golden.
Let it cool for 5 to 10 minutes before serving so it slices and serves more easily.

Tips

Use ripe bananas. The more brown spots on the peel, the sweeter and softer the resulting oatmeal becomes.
Mix thoroughly after adding the oats. Stir well enough that no dry oats remain at the bottom, as those turn powdery once baked.
Add frozen blueberries straight from the freezer. Do not thaw them first; this prevents excessive purple streaking throughout the oatmeal.
Let the dish rest before slicing. A minimum cooling time of 5 minutes allows it to set, yielding cleaner portions when served.
Taste the blueberries beforehand. If they come across as tart, add a small drizzle of honey or maple syrup just before serving.
Store leftovers properly by keeping them covered in the refrigerator for up to four days.
Reheat gently when ready to eat. A 20- to 30-second warm-up in the microwave restores a soft, cozy texture for the next day. This method produces a perfectly simple baked oatmeal ideal for meal prep.

FAQ

Yes. Add them straight from the freezer. Do not thaw first; thawing makes the batter too purple and watery. The texture stays soft and remains enjoyable.

Yes. It works very well as a breakfast casserole with blueberries for the week. Bake it, let it cool, then refrigerate it and reheat portions as needed.

Yes. Substitute the egg with a chia egg. To make one, stir 1 tablespoon of chia seeds with 2½ tablespoons of water and let it sit for about 5 minutes until thick and gel‑like. The baked oatmeal will be slightly softer but will set as it cools.

Let it cool completely. Cover the dish or transfer slices to an airtight container. Store in the refrigerator for up to 4 days. Reheat gently in the microwave. It is ideal as a high protein baked oatmeal for busy mornings.

Yes. It tastes lightly sweet and nearly cheesecake‑like. Add a spoonful of whipped cream or a small scoop of vanilla ice cream for a simple dessert twist.

More Easy Breakfasts to Try