Blueberry Baked Oatmeal

This blueberry baked oatmeal is studded with blueberries and naturally sweetened with bananas and pure maple syrup. Can be made with fresh or frozen blueberries! Gluten-free and vegan-friendly.

We kicked off Oatmeal Week with baked oatmeal cups, but today we’re doing a full-on baked oatmeal recipe that bakes in a square baking dish.

This variation of baked oatmeal is still uber healthy and perfect for meal prep, but it’s also great for entertaining. Whenever we’re having friends or family over for breakfast or brunch, baked oatmeal is on the menu. Sometimes I’ll also make a frittata so we have two options (one sweet and one savory) for everyone to enjoy.

Baking dish with Blueberry Baked Oatmeal topped with fresh blueberries.

I’ve personally been hooked on baked oatmeal for a few years, ever since I shared this baked oatmeal recipe that everyone LOVES. I recently decided that I needed to experiment with different baked oatmeal flavor combinations and blueberries immediately came to mind!

A slice of blueberry baked oatmeal topped with fresh blueberries and maple syrup.

Blueberry Health Benefits

I love blueberries because they’re available year-round (fresh or frozen) . . . and they taste delicious year round too! They’re also known for being a superfood because they contain some of the highest antioxidant levels compared to most common fruits and veggies. They have also been shown to help improve chronic diseases like heart disease, blood pressure and diabetes.

Blueberry oatmeal topped with fresh blueberries in a baking dish before being baked.

Here’s What You Need:

  • rolled old-fashioned oats
  • pure maple syrup
  • baking powder
  • ground cinnamon
  • sea salt
  • unsweetened vanilla almond milk
  • egg or flaxseed egg
  • coconut oil
  • pure vanilla extract
  • bananas
  • fresh or frozen blueberries

This baked oatmeal is sweetened with a little bit of maple syrup and bananas, making it the perfect example of a baked breakfast that doesn’t need a ton of sugar to be delicious.

Of course, if you do feel like you want your baked oatmeal to be a little sweeter, you can always add a drizzle of maple syrup on it right before you dig in. 🙂

Baking dish with Blueberry Baked Oatmeal topped with fresh blueberries. A slice is taken out of the oatmeal.

Prepping & Storing Baked Oatmeal

One of my favorite things about baked oatmeal is that you can prep it ahead of time. There are a couple options that work really well. Here’s what I recommend:

Option 1: Bake and Then Reheat Before Serving

  1. Prepare baked oatmeal as the recipe suggests. Once baked, let the oatmeal cool, cover the baking dish and place in the fridge. You can do this 1-2 days in advance.
  2. When ready to serve, take oatmeal dish from fridge, cover with foil and reheat in a 350°F oven for about 20 minutes. For individual portions, set toaster oven to 350°F and bake for 5-10 minutes or reheat in the microwave for 1 minute.

Option 2: Prep as Much as You Can Without Baking

  1. Mix together your dry ingredients in a bowl, cover and let sit out on the counter until morning.
  2. Mix together all the wet ingredients in another bowl, cover and store in the fridge until morning.
  3. In the morning, simply mix the wet and dry ingredients together, pour oatmeal mixture into your prepared baking dish and bake as recipe suggests.

A slice of blueberry baked oatmeal on a spatula being taken out of a baking dish.

This baked oatmeal is good on it’s own, but to me, oatmeal isn’t complete without a drizzle of nut butter so I always serve my baked oatmeal with a drizzle of peanut butter or almond butter on top. So yummy!

A slice of blueberry baked oatmeal topped with fresh blueberries and maple syrup.

Here Are More Baked Oatmeal Recipes to Try:

More Oatmeal Recipes:

If you make this baked blueberry oatmeal please leave me a comment and star rating below. This feedback is super helpful for me and other EBF readers who are thinking about making the recipe. 

Print
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Baking dish with Blueberry Baked Oatmeal topped with fresh blueberries.

Blueberry Baked Oatmeal


  • Author: Brittany Mullins
  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes
  • Yield: 4

Description

This blueberry baked oatmeal is studded with blueberries and naturally sweetened with bananas and pure maple syrup. Can be made with fresh or frozen blueberries! Gluten-free and vegan-friendly.


Ingredients

  • 2 cups rolled old-fashioned oats
  • 1/4 cup pure maple syrup
  • 1 teaspoon aluminum-free baking powder
  • 1 1/2 teaspoons ground cinnamon
  • 1/2 teaspoon fine-grain sea salt
  • 2 cups unsweetened vanilla almond milk
  • 1 large egg (or 1 Tablespoon ground flaxseed)
  • 2 tablespoons coconut oil, melted
  • 2 teaspoons pure vanilla extract
  • 2 ripe bananas, mashed
  • 1 1/2 cups fresh or frozen blueberries, divided
  • cooking spray
  • additional blueberries, nut butter and extra maple syrup, for serving

Instructions

  1. Preheat the oven to 375°F.
  2. Spray an 8-inch square baking dish with cooking spray.
  3. In a large bowl, mix together the oats, baking powder, cinnamon, and salt.
  4. Add in the milk, maple syrup, egg, coconut oil, vanilla and bananas. Stir well to combine. Gently fold in 1 cup of blueberries.
  5. Carefully pour oatmeal mixture into the prepared baking dish.
  6. Scatter the remaining blueberries across the top.
  7. Bake for 40 to 55 minutes or until the middle of the bake is set and the top is golden. Remove from the oven and let cool for a few minutes. Portion and serve. Top with additional fresh blueberries and nut butter, if using. Drizzle each portion with maple syrup if you want it a bit sweeter.
  8. For storage: store in the refrigerator in an airtight container for up to 4 days.
  9. To reheat: To reheat the whole baked oatmeal, cover with foil and reheat in a 350°F oven for about 20 minutes. For individual portions, set oven (or toaster oven) to 350°F and bake for 5-10 minutes or reheat in the microwave for 1 minute.
  • Category: Breakfast
  • Method: Bake
  • Cuisine: Oatmeal

Nutrition

  • Serving Size: 1/4 of recipe
  • Calories: 396
  • Sugar: 28g
  • Fat: 14g
  • Saturated Fat: 7g
  • Carbohydrates: 64g
  • Fiber: 8g
  • Protein: 8g

Keywords: baked blueberry oatmeal

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Recipe rating

    137 comments
    1. Jaclyn Kuhn
      March 2, 2021 AT 10:13 am

      This turned out delicious! Definitely a keeper. It would be amazing with caramelized bananas on top, trying that out next time!

    2. Katy
      March 1, 2021 AT 10:49 am

      Easy! So delish made for my breakfast prep for the week kids loved it so much had to make a second batch!

      1. Brittany Mullins
        March 1, 2021 AT 8:48 pm

        So glad this recipe was a hit, Katy!! Thanks for the review, I so appreciate it!

    3. Cathleen
      March 1, 2021 AT 8:21 am

      So delicious! Especially with a drizzle of almond butter! Thanks so much this recipe is a keeper.

      1. Brittany Mullins
        March 1, 2021 AT 8:56 pm

        So glad you loved this recipe, Cathleen!! Thanks for the review. I so appreciate it!

    4. Alina
      February 28, 2021 AT 9:57 pm

      I made this today. The recipe is super easy and it’s delicious!

      1. Brittany Mullins
        February 28, 2021 AT 11:09 pm

        So glad you loved this recipe, Alina! Thanks for the review. I so appreciate it!

    5. Haylee Brown
      February 28, 2021 AT 6:45 pm

      So good and easy to make. My kids and husband loved it. I made ahead and then reheat for breakfast.

      1. Brittany Mullins
        February 28, 2021 AT 11:16 pm

        So glad this recipe was a hit withy your family!! Thanks for the review. I so appreciate it!

    6. Barbara Juhan
      February 27, 2021 AT 10:34 pm

      Love, love, loved this! My husband devoured it in a couple days!! Will definitely make again. Can’t wait to try the others, too!

      1. Brittany Mullins
        February 28, 2021 AT 11:35 pm

        So glad this recipe was a hit! Thanks for the review. I so appreciate it!

    7. Em
      February 27, 2021 AT 6:27 pm

      Absolutely delicious! When you have this made in advance for breakfasts in the morning, and it’s motivation for you to get out of bed and start the day! I will hands down make this again, and look forward to trying more of the flavours (pumpkin was also a hit).

      1. Brittany Mullins
        February 28, 2021 AT 11:38 pm

        So glad you loved this recipe, Emily! Thanks for the review. I so appreciate it!

    8. Jennifer Gieseke
      February 27, 2021 AT 5:39 pm

      I’ve made this twice in the past week!

      1. Brittany Mullins
        February 28, 2021 AT 11:38 pm

        Ahh yay, so glad you’re loving this recipe, Jennifer!

    9. Charley
      February 26, 2021 AT 6:20 pm

      Easy and delicious! Made with frozen blueberries and only 1.5 bananas and turned out great.

      1. Brittany Mullins
        February 27, 2021 AT 1:13 pm

        So glad you loved this recipe, Charley! Thanks for the review. I so appreciate it!

    10. just.me2913
      February 26, 2021 AT 10:41 am

      I loved this combination. I made it without the maple syrup to try a less sweetened version and I still found it delicious. Enjoyed it topped with almond butter… yum!

      1. Brittany Mullins
        February 26, 2021 AT 3:03 pm

        So glad you loved it! Thanks for the review. I so appreciate it!

    11. Jamie
      February 26, 2021 AT 9:56 am

      Love this one! It’s so versatile. I used applesauce instead of oil and drizzled peanut butter over the top. Yum!

    12. Aims
      February 24, 2021 AT 9:48 am

      This is by far my most favorite oatmeal! Not just the baked, of all kinds, ever! I’ve eaten it warm and cold and wasn’t disappointed either time. I just use frozen blueberries because they are the easiest for me to get and my oatmeal turns out perfect every time.

      1. Brittany Mullins
        February 24, 2021 AT 3:45 pm

        Ahh yay!! This makes me so happy to hear!! So glad you’re a fan of this recipe. Thanks for coming back to leave a review. I so appreciate it!

    13. Melissa
      February 24, 2021 AT 5:08 am

      This is my go to baked oatmeal. I’ve made this one a couple times in the last few weeks and it is always devoured. My husband actually requests this one! It always turned out perfect and is great for meal prepping.

      1. Brittany Mullins
        February 24, 2021 AT 3:50 pm

        Yay!! So glad this one has been a hit. Thanks for making it and for coming back to leave a review. I so appreciate it!

    14. Jessica
      February 23, 2021 AT 9:26 pm

      This has been my favorite of the EBF baked oatmeals so far and will def be a part of the regular rotation! I left out the maple syrup to cut back on some sugar and it turned out great – still plenty sweet for me (and I have a major sweet tooth!) thanks to the bananas and blueberries.

      1. Brittany Mullins
        February 24, 2021 AT 3:52 pm

        Ahh yay!! So glad you’re loving this recipe, Jessica. Thanks for making it and for coming back to leave a review. I so appreciate it!

    15. Shannon
      February 23, 2021 AT 5:10 pm

      Made this on the weekend and it was such a hit! So quick to put together and delish leftovers! A quick reheatable breakfast which is great as I have 6 month twins keeping me busy!

      1. Brittany Mullins
        February 23, 2021 AT 8:40 pm

        Woo!! So glad you loved it. Thanks for the review, Shannon. I appreciate it!

    16. Liz
      February 22, 2021 AT 11:14 am

      Soooo yummy! Delicious! I only had quick oats on hand, but it still came out good. Definitely going to try old fashioned oats next time.

      1. Brittany Mullins
        February 22, 2021 AT 9:46 pm

        Good to know this recipe turned out with quick oats!! Thanks for sharing and for coming back to leave a review, Liz. I appreciate it.

    17. Christine
      February 21, 2021 AT 1:50 am

      Easy to make and so delicious! Loved the smell of it; great way to start your morning!

      1. Brittany Mullins
        February 21, 2021 AT 8:24 pm

        Yay!! So glad you loved this recipe, Christine. Thanks for coming back to leave a review. I so appreciate it!

    18. Janet L.
      February 20, 2021 AT 1:20 pm

      Made Blueberry Baked Oatmeal today. Didn’t think I could like it more than the apple I tried earlier, but I think I do.

      1. Brittany Mullins
        February 20, 2021 AT 8:31 pm

        Ahh yay, so glad you loved it!! Thanks so much for coming back to leave a review, Janet. I so appreciate it!

    19. Brooke Clarke
      February 18, 2021 AT 12:43 pm

      Day 2 of Snow Day Baking! Blueberry Baked Oatmeal is delicious & comforting on this cold wintry day. My house smells wonderful while this is baking! So delicious with a drizzle of warm maple syrup!

      1. Brittany Mullins
        February 18, 2021 AT 1:51 pm

        Woo!! So glad you loved it, Brooke. Thanks for making it and for coming back to leave a review. I so appreciate it!

    20. Deanna
      February 17, 2021 AT 10:00 pm

      Finally got around to making this recipe today and I’m so glad that I did. I swapped coconut oil for avocado oil and only used 1tbsp. I also put it under the broiler for a few minutes at the end of the baking time. The blueberries popped and cararmelized. It was perfect.

      1. Brittany Mullins
        February 18, 2021 AT 2:05 pm

        Woo!! So glad you loved this recipe. I so appreciate you coming back to leave a review. It means the world to me. 🙂

    21. Shelly
      February 17, 2021 AT 6:46 pm

      it was supposed to have 5 stars on my original comment, sorry!

      1. Brittany Mullins
        February 18, 2021 AT 2:08 pm

        No worries, thank you Shelly!! 🙂

    22. Shelly
      February 17, 2021 AT 6:45 pm

      Delicious and easy to make! We sprinkled slivered almonds on top after it baked. Definitely will be a go-to when I have ripe bananas.

      1. Brittany Mullins
        February 18, 2021 AT 2:09 pm

        So glad you loved this recipe, Shelly. I so appreciate the review!

    23. Mandy
      February 16, 2021 AT 9:38 pm

      What an absolutely delicious way to enjoy oatmeal! It was a total hit with the kids too! Blueberries are a favorite around here so we added extra fresh one on top when we ate it. Can’t wait to try the pumpkin baked oatmeal. I’m a total pumpkin lover!! Thanks so much for such a delicious and healthy recipe!!

      1. Brittany Mullins
        February 18, 2021 AT 2:17 pm

        Woo!! So glad this recipe was a hit with your family, Mandy. Thanks for the review. I so appreciate it!

    24. samantha.eatzz
      February 16, 2021 AT 10:52 am

      This blueberry baked oatmeal is delicious and reminds me of blueberry cake 🙂 It only lasted a few days LOL

      1. Abbey
        February 21, 2021 AT 3:10 pm

        Is there something I could swap for the bananas? I read another comment saying they used applesauce instead – what approximate measurements should I use? Or can I omit them altogether? SO excited to try this!!

        1. Brittany Mullins
          February 21, 2021 AT 8:17 pm

          I wouldn’t omit the bananas all together. You can swap them with applesauce instead. I would start with 1/2 cup of applesauce for this recipe. Let me know how it turns out if you try it!

      2. Brittany Mullins
        February 16, 2021 AT 9:22 pm

        So glad it was a hit!! Thanks for coming back to leave a review. I so appreciate it!

    25. Paige
      February 16, 2021 AT 10:43 am

      I made this as part of my breakfast meal prep this week! Absolutely delicious and stored great in the fridge for the week

      1. Brittany Mullins
        February 16, 2021 AT 9:23 pm

        Woo!! So glad you loved it, Paige. Thanks for coming back to leave a review. I so appreciate it!

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