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Blueberry Baked Oatmeal with Greek Yogurt (Easy & Creamy Breakfast)

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This Blueberry Baked Oatmeal is soft, creamy, and naturally sweet, made with simple ingredients like rolled oats, Greek yogurt, ripe bananas, and juicy blueberries. It’s easy to prepare in one bowl, perfect for meal prep, and satisfying enough for breakfast or a lighter dessert.

  • Total Time: 45 minutes
  • Yield: 6 servings

Ingredients

Scale
  • 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)

Instructions

  1. Preheat the oven to 375°F (190°C). Lightly grease an 8 x 8 inch or similar baking dish.
  2. In a large bowl, mash 2 ripe bananas until mostly smooth. Add 1 cup Greek yogurt, ½ cup milk, ¼ cup honey, 1 large egg, and 1 teaspoon vanilla extract. Whisk until creamy.
  3. Stir in 1½ cups rolled oats, 1 teaspoon cinnamon, 1 teaspoon baking powder, and 1 pinch salt. Mix well so no dry oats remain. Gently fold in 1 cup blueberries.
  4. Pour into the baking dish. Top with the remaining 1 cup blueberries and ¼ cup chopped walnuts.
  5. Bake at 375°F (190°C) for about 35 to 40 minutes, until the center is set and the top is lightly golden.
  6. Let cool for 5 to 10 minutes before serving.

Notes

Equipment

  • Use an 8 x 8 inch, 9 x 9 inch, or similar baking dish.

Substitutions

  • Ripe bananas: Replace with ¾ cup unsweetened applesauce, 1 cup mashed pear, or 1 cup mashed sweet potato. These are less sweet, so add about 2 tablespoons more honey to balance the flavor.
  • Rolled oats: Use certified gluten-free oats or quick oats for a softer texture.
  • Blueberries: Replace with raspberries, chopped strawberries, blackberries, or mixed berries.
  • Greek yogurt: Use low-fat Greek yogurt, Skyr for extra protein, or plain regular yogurt.
  • Milk: Use almond milk, soy milk, oat milk, or any dairy milk.
  • Honey: Replace with maple syrup or mashed soft dates.
  • Egg: Use a chia egg made with 1 tablespoon chia seeds mixed with 2½ tablespoons water.
  • Walnuts: Replace with pecans, sliced almonds, pistachios, or pumpkin seeds.
  • Baking powder: There is no direct substitute; do not skip it.
  • Cinnamon and vanilla: Use pumpkin pie spice, cardamom, almond extract, or lemon zest.

Tips

  • Use very ripe bananas for natural sweetness and a softer texture.
  • Stir thoroughly so no dry oats stay at the bottom.
  • Add frozen blueberries straight from the freezer.
  • Let it rest for 5 minutes before slicing so it sets properly.
  • Taste the berries and adjust sweetness if needed.
  • Store covered in the fridge for up to 4 days.
  • Reheat for 20 to 30 seconds in the microwave for a warm, soft texture.
  • Author: Emma
  • Prep Time: 10 minutes
  • Cook Time: 35 minutes
  • Category: Breakfast, Dessert
  • Method: Baking
  • Cuisine: American