Blueberry banana baked oatmeal with quick oats is easy, healthy, and delicious!

This baked oatmeal casserole can be cut into bars or squares, and is yummy served hot or cold! It’s also perfect for meal prepping!

For breakfast or brunch, we love to serve this with pumpkin overnight oats and a fruit salad. Or add a delicious strawberry mango smoothie (or mixed berry for days that we want to stick with the berry theme)!

Blueberry banana baked oatmeal on a white plate with a bite on a fork

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Blueberry Banana Baked Oatmeal

Baked oatmeal with blueberries and bananas can be made on a Sunday and will last the entire week! Try this healthy baked oatmeal as a snack to go, especially when blueberries are in season, fresh and plump. This recipe also works well with frozen blueberries.

Another great thing about this recipe is that it can be switched up in so many different ways! Try these variations:

  • No blueberries on hand? Try banana baked oatmeal!
  • Or, make blueberry baked oatmeal if you don’t have bananas!
  • Try it swirled with peanut butter or almond butter.
  • Add fruit such as dried cherries, raisins, or cranberries. 

Blueberry banana baked oatmeal on a plate with slices of orange on the side

This breakfast is a total winner in the morning! Hearty, budget-friendly, and a family favorite! 

How to Make Baked Oatmeal

This oatmeal breakfast bake is so easy to make. Once you have lined your baking sheet or sprayed it with pan release there are just a few simple steps to follow! 

  1. Mix together wet ingredients (per recipe below).
  2. Add dry ingredients and fold in the blueberries.
  3. Spread evenly in the pan and sprinkle with the topping. 

Pop it in the fridge to bake later (covered tightly in plastic wrap) or straight into the oven to enjoy now! 

Blueberry banana baked oatmeal in a pan with parchment paper

How Long to Bake Oatmeal

How long to bake oatmeal depends on the size of the pan and the thickness of the oatmeal.

This recipe calls to bake for 40 to 45 minutes until the center is set, in a 9×9 pan

  • For a larger pan, bake only about 30 minutes.
  • For a loaf sized pan (like a banana bread pan) bake for 50 minutes.

How to Store Baked Oatmeal

Keep baked oatmeal in an airtight container or cover the casserole dish with plastic wrap before storing it in the refrigerator.

Baked oatmeal can even be frozen in squares or slices then thawed the night before for an instant hearty breakfast the next morning!

Square of blueberry banana baked oatmeal on a white plate with orange slices

How to Reheat Baked Oatmeal

  • Once oatmeal is thawed, simply reheat it in the microwave!
  • Slices of baked oatmeal can be toasted in a dry skillet.
  • If baked the night before, reheating the next day is super easy in the microwave, stovetop, or oven!
  • Try popping a slice in the toaster oven before serving with fresh berries and clotted cream on top. Delicious! 

There are so many delicious ways to make and serve this baked oatmeal recipe. Be sure to let us know your favorite way below! 

Blueberry banana baked oatmeal on a white plate with a bite on a fork
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Blueberry Banana Baked Oatmeal

This baked oatmeal recipe is perfect for a crowd, or to meal prep for the whole week!
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings 12 servings
Author Candace

Equipment

Ingredients  

  • 3 cups quick oats
  • 1 ½ teaspoons cinnamon
  • 1 ½ teaspoons baking powder
  • ½ teaspoon salt optional
  • 1 ½ cups milk
  • ¼ cup honey
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 3 bananas ripe, mashed
  • 2 cups blueberries fresh or frozen, divided

Topping:

  • ¼ cup brown sugar
  • 2 teaspoons cinnamon
  • 2 Tablespoons flour
  • 2 Tablespoons butter
  • 2 Tablespoons chopped pecans

Instructions 

  • Preheat oven to 350F. Line a 9x9 baking pan with parchment paper (or grease if you prefer).
  • In a large bowl, mix milk, honey, eggs, vanilla, and banana.
  • Add in oats, cinnamon, baking powder, and salt and mix well. Fold in 1 cup blueberries.
  • Add to baking pan and spread. Sprinkle remaining 1 cup blueberries on top.
  • In a small bowl, mix together brown sugar, cinnamon, flour, and butter with a fork. Stir in pecans and sprinkle topping over blueberries. Bake for 40-45 minutes, until center is set.
  • Allow to cool for 5 minutes and cut into 12 squares. Remove with a spatula.

Notes

Store in an airtight container in the fridge for up to 7 days. 
Reheat in the microwave until heated through, top with fresh berries and clotted cream! 
5 from 1 vote↑ Click stars to rate now!
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Nutrition Information

Calories: 219 | Carbohydrates: 38g | Protein: 5g | Fat: 6g | Saturated Fat: 2g | Cholesterol: 35mg | Sodium: 140mg | Potassium: 314mg | Fiber: 4g | Sugar: 18g | Vitamin A: 180IU | Vitamin C: 5mg | Calcium: 83mg | Iron: 1mg

Nutrition information does not include optional ingredients or garnish and is an estimate. It may change based on actual ingredients and cooking methods used.

Course Breakfast
Cuisine American

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Blueberry banana baked oatmeal on a white plate with a fork and orange slices

Blueberry banana baked oatmeal on a plate with slices of orange on the side
Square of blueberry banana baked oatmeal on a white plate with orange slices
Blueberry banana baked oatmeal in a pan with parchment paper
Top image - a slice of blueberry banana baked oatmeal. Bottom image - baked oatmeal with a fork
Blueberry banana baked oatmeal on a white plate with a bite on a fork

Baked oatmeal recipe from Live Well Bake Often

 

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About the author

I am a wife, mother of two, and professional accountant. I love fantastic food, and it is so often the center of our lives, from everyday dinner, to family gatherings, and special evenings at fabulous restaurants. I have always loved cooking and baking, with my mom and grandma, and now, with my daughter and son. I love trying new recipes while enjoying my favorites too. I’m so happy to share them with you.
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