Healthy Blueberry Baked Oatmeal

Published by:
Liz Marino
| 05/09/2024 | Last Updated: 12/05/2025

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Blueberry Baked Oatmeal is a simple make-ahead breakfast recipe that is healthy and delicious! Gluten free and packed with flavor!

A white baking dish of Healthy Blueberry Baked Oatmeal with blueberries on the side.


 

When you need something quick and easy for breakfast – this Healthy Blueberry Baked Oatmeal is our go to!

This baked oatmeal is made with only 9 ingredients (many of which you probably have in your pantry/ refrigerator) and it’s packed with healthy whole grains, bursting with sweet blueberries, making it feel like a treat, but it’s a nutritious way to start your day.

There are few things better on a chilly morning than a big bowl of warm, cozy oatmeal, right? (Maybe a Healthy Blueberry Muffin..)

If you love oatmeal, but hate the mess of the sticky oatmeal covered pan, baked oatmeal is a must try. It’s way less work and just as delicious!

liz’s meal prep tips for blueberry baked oatmeal

  • This recipe makes 4 servings, so you cook once, clean once, and have breakfast ready for days. It’s also portable and easy to meal prep—I love baking a batch on Sunday to make the week ahead a little easier.
  • Enjoy it cold or warm! I prefer it warmed a little, but it’s great straight from the fridge too.
  • Bake it ahead of time and then reheat it when you’re ready to serve. If you mix together all ingredients and store them in the refrigerator for up to 24 hours before you’re ready to bake, the oats will absorb the liquid, and it will not cook correctly. For an overnight oats recipe, try this Blueberry Overnight Oats Recipe.

Ingredients

Ingredients for Blueberry Baked Oatmeal in small white bowls on a grey background: milk, cinnamon, ground ginger, nutmeg, old fashioned oats, blueberries, coconut oil, honey, egg

Baked Oatmeal Substitutions

Fruit substitutions: Baked oatmeal is pretty flexible and you can make a lot of substitutions to it. You can sub any type of fruit or berry in this recipe (apple, mango, strawberries, raspberries, blackberries, etc). I’d check out this Chocolate Peanut Butter Baked Oatmeal if you’re looking for something a little more decadent!

Frozen blueberries: I haven’t tried this with frozen berries – but I think it would work. I would thaw the berries completely and allow excess liquid to drain off before adding them to the batter. If you don’t thaw the berries, it might just make the texture a little soggy!

Coconut Oil: You can use olive oil or melted butter.

Honey: You can sub honey for maple syrup or agave. Use the same amount. I have not tried this with stevia so I’m not sure how that would work.

Vegan Baked Oatmeal: Sub egg for one flax egg, sub honey for maple syrup.

Gluten Free: Oats are gluten free, but if you have an allergy make sure you’re using gluten free certified rolled oats.

Milk: You can use any type of milk in this recipe. Regular dairy/non dairy will work!

Optional add ins: chopped walnuts, more chocolate, shredded coconut, fresh fruit or vanilla extract go great in this recipe.

Steel Cut Oats: You can use steel cut oatmeal in this recipe. Use 1 cup of steel cut oats and 2 cups of liquid/milk. We have a Baked Steel Cut Oatmeal recipe that you can also follow!

Quick Cook Oats: I have not tried this with quick cook oats and wouldn’t recommend it. I don’t think that it will hold up/cook correctly with the smaller oats.

Baked Oatmeal Cups: I haven’t tried baking these in muffin cups but I think it would work! The only thing I would say is it will be harder to clean up and it might stick to a muffin tin. I would grease the muffin tins or use silicone baking liners. You can bake for a little less time. 

Blended Oats: We love this Blended Baked Oats Recipe!

How to make blueberry baked oatmeal:

Wet ingredients for blueberry baked oatmeal in a clear bowl with a whisk.
  1. In a bowl, whisk together coconut oil, egg, honey + milk.
Wet and dry ingredients for blueberry baked oatmeal mixed in a clear bowl with blueberries on the side.
  1. Combine wet + dry ingredients.
Blueberries being folded into other ingredients for blueberry baked oatmeal in a clear bowl.
  1. Fold in blueberries with a spatula to prevent them from bursting
Uncooked blueberry baked oatmeal in a white square baking dish.
  1. Pour batter in a greased 8×8 pan – it will look like there is too much liquid, but it will absorb.
A white baking dish of Healthy Blueberry Baked Oatmeal with blueberries on the side.
  1. Bake for 35-40 minutes, until top is golden brown and milk is completely absorbed. Enjoy warm or cold!

You can even double this recipe – just put it in a 9×13 baking dish. You can use a ceramic, glass or metal baking dish. We also like this nonstick bakeware!

A white plate of blueberry baked oatmeal topped with whipped cream and blueberries with another plate in the background.

Storing:

Storing: This baked oatmeal will last in the refrigerator for up to 4 days. You can’t store this baked oatmeal at room temperature; it needs to be refrigerated!

Freezing: Baked oatmeal freezes really well! For best results, bake, slice, and freeze your oatmeal.

We recommend wrapping your individual portions in plastic wrap, or you can slice and freeze in a big freezer safe ziploc bag (but if they’re not individually wrapped, they might stick together)

Baked oatmeal will last about 3 months in the freezer.

How to Reheat Baked Oatmeal:

You can eat baked oatmeal cold, but if you want you can also reheat it!

Microwave: This oatmeal is great when microwaved for a minute.

Oven/Toaster Oven: You can also reheat baked oatmeal in a toaster oven or place the baking dish back in the oven if you’d like! I prefer this over the microwave because the edges get crispy

An overhead shot of blueberry baked oatmeal on a white plate with another plate and blueberries on the side.

Serving ideas

This baked oatmeal is great to eat on its own, but you could also serve it with:

An overhead shot of blueberry baked oatmeal on a white plate with another plate, glass of milk, and berries off to the side.

Other healthy baked oatmeal recipes:

We love cooking with oats! If you love oatmeal check out these other Healthy Oatmeal Recipes.

A white baking dish of Healthy Blueberry Baked Oatmeal with blueberries on the side.

Blueberry Oatmeal Bake

Recipe by: Liz Marino
4.82 from 50 votes
Healthy Blueberry Baked Oatmeal is a simple make-ahead breakfast recipe that is perfect for meal prep! Gluten free, easy to make, and packed with flavor!
Prep Time : 5 minutes
Cook Time : 35 minutes
Total Time : 40 minutes
Serves : 4 people
(hover over # to adjust)

Ingredients

Instructions

  1. Preheat oven to 350
  2. In a mixing bowl, stir all dry ingredients until combined. 
  3. In a separate bowl, whisk together coconut oil, egg, honey + milk.
  4. Combine wet + dry ingredients. Fold in blueberries with a spatula to prevent them from bursting
  5. Pour batter in a greased 8×8 pan – it will look like there is too much liquid, but it will absorb.
  6. Bake for 35-40 minutes, until top is golden brown and milk is completely absorbed. Enjoy warm or cold!
  7. Store in an airtight container in refrigerator

Notes

Baked Oatmeal Substitutions:
  • Fruit substitutions: Baked oatmeal is pretty flexible and you can make a lot of substitutions to it. You can sub in any type of fruit or berry in this recipe. I’d check out this Chocolate Peanut Butter Baked Oatmeal if you’re looking for something a little more decadent!
  • Make it vegan: sub egg for one flax egg, sub honey for maple syrup, make sure to use a dairy free chocolate chip
  • Make it gluten free: make sure you’re using gluten free certified rolled oats.
  • Optional add ins: chopped nuts, more chocolate, shredded coconut, fresh fruit

Nutrition Facts

Serving: 1square (based on 4 squares) | Calories: 267kcal | Carbohydrates: 46g | Protein: 7g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 1g | Cholesterol: 41mg | Sodium: 19mg | Potassium: 198mg | Fiber: 5g | Sugar: 17g | Vitamin A: 79IU | Vitamin C: 4mg | Calcium: 30mg | Iron: 2mg
Course: Breakfast
Cuisine: American
Tried this recipe?Share it! Make sure to tag @thecleaneatingcouple or use #thecleaneatingcouple!
4.82 from 50 votes (8 ratings without comment)

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Recipe Rating




100 Comments

  1. 5 stars
    This is so delicious! My boyfriend and I love it.

    1. The Clean Eating Couple says:

      Yay! So glad you both liked it, Lauren! Thank you!

  2. Can you use frozen blueberries

    1. The Clean Eating Couple says:

      This is noted above in the recipe: Frozen berries: I haven’t tried this with frozen berries – but I think it would work. I would thaw the berries completely and allow excess liquid to drain off before adding them to the batter.

  3. 5 stars
    Very yummy! Super versatile too. I really like throwing the mixed bag of frozen fruit inhave in there. Next time I’m going to try it with strawberries.

    1. The Clean Eating Couple says:

      So glad to hear this, Janay! Thank you!!

  4. 5 stars
    Just made this today! It is so good and healthy!

    1. The Clean Eating Couple says:

      Thank you so much, Michelle! I’m so glad you liked it!

  5. 5 stars
    Today was my first time making this, and it was so easy and turned out great!! It’ll be a great go to this week for breakfast. The best part of this recipe is that the ingredients are the kind I always have on hand anyways.

    1. The Clean Eating Couple says:

      Glad you enjoyed it, Amanda! Thank you!! Next time try the

  6. 5 stars
    Delicious. Love how simple yet flavorful it is. Thanks for all your hard work.

    1. The Clean Eating Couple says:

      Thank you so much, Erin! Glad you liked it!

  7. Amanda Brewer says:

    5 stars
    Absolutely delicious! I am in love with this! When I came out of the oven I let it cool for a little bit and then ate some. I was a little nervous that it wouldn’t stay together, but after it being in the fridge overnight it’s beautiful and delicious.

    1. The Clean Eating Couple says:

      Thank you so much, Amanda! So glad you liked it!

  8. Karen Dandelske says:

    5 stars
    I’ve made this many times & it comes out delicious. It freezes well & I’ve had success with several different berry combinations. It makes an easy prep ahead breakfast that’s substantial enough to keep me full until lunchtime.

    1. The Clean Eating Couple says:

      So glad you enjoy it, Karen! It’s great with pretty much any add in!

  9. Alena Shen says:

    5 stars
    I followed this recipe and it turned out great! It was so easy and refrigerated well. I definitely was too excited to cut into it though, and it fell apart a bit but stayed together enough to refrigerate in squares. It still tasted great, regardless!

    1. The Clean Eating Couple says:

      Glad you liked it, Alena!

  10. Questa Williamson says:

    5 stars
    Best baked oatmeal recipe out there!!! You can follow it to a T or use what you have. It’s very versatile, use any milk you have or any fruit you have! She’s got the ratios down!

    1. The Clean Eating Couple says:

      Thank you so much, Questa! So glad you like it!

  11. 5 stars
    Baked oatmeal is the bomb! Easy and delicious!! I like it for any meal! Will def be making it again. 🙂

  12. 5 stars
    Super simple to make and very filling!

    1. The Clean Eating Couple says:

      Glad you liked it, Kimberly!

  13. 5 stars
    So yummy. Even my kids scarfed it. Love the clean eating couple so much!!

    1. The Clean Eating Couple says:

      Thank you so much, Erin! So glad you like the oatmeal!

  14. Carol English says:

    5 stars
    I love the Healthy Baked Oatmeal. The portions were so large, I had to cut into 6 pieces.

    1. The Clean Eating Couple says:

      Thanks, Carol! So glad you like it!

  15. 5 stars
    This recipe is great and really easy to customize with whatever fruits you like/have on hand.

    1. The Clean Eating Couple says:

      Thanks so much Lauran! It is super versatile + yummy 🙂

  16. Hi! I have a suggestion, if you don’t mind one? Try adding a swoosh of cardamom the next time you make this – cardamom + the spices you have listed are like PB&J! Trust me, I’m a doctor.

    … okay, I’m not, but try it anyway. Worth. It. Also, just wondering if I were to leave the coconut oil out entirely (and not substitute for anything), whether it would affect the baking, or anything else, for that matter? Thank you!

    1. The Clean Eating Couple says:

      Hi! Feel free to add cardamom. Sounds good. I wouldn’t recommend leaving out the oil – it helps to add moisture to the oats. If you try it without it – let me know how it comes out!

  17. Marilyn Sponheimer says:

    I have not made this yet but do you have to add the Collagen Peptides I do not have any? Can I use something to substitute until I get it OR do you have to add it? It looks healthy and yummy !! Sorry the printing is so small I don’t know how to get the fonts bigger from here. I just noticed that someone used plantain flour instead. Can I use any other flours. Don’t have any plantain flour.

    Thank you !

    1. The Clean Eating Couple says:

      Hi Marilyn – You do not need to use collagen peptides – I actually have removed them from the recipe, as they’re totally optional. There is no plantain flour in this recipe, and I don’t see anyone else has tried that. There’s no flour at all in this recipe and I wouldn’t add any. Hope that helps!

  18. 5 stars
    Quick and easy breakfast, perfect for making ahead or fresh for guests!! We have made it a few times now and love it!!

    1. The Clean Eating Couple says:

      So glad you like it, Hayley! Thanks for trying 🙂

  19. Jamie Schimdt says:

    5 stars
    Delish!!!!! I subbed unsweetened applesauce for the coconut oil bc I was out and it came out fine! Made 6 servings for the week! Thank you!!

    1. The Clean Eating Couple says:

      So glad you liked it, Jamie! Great idea to substitute!

  20. 5 stars
    Made this today and it smells delicious in my oven! Subbed plantain flour for the collagen and maple syrup for the honey. Can’t wait to eat this!

    1. The Clean Eating Couple says:

      So glad to hear this Amanda!! Enjoy 🙂

  21. Ashley Abston says:

    5 stars
    Good flavor. I did not use almond milk (used lactose free Fair Life milk) and had to cook longer than 40minutes in order for the bake to solidify.

    1. The Clean Eating Couple says:

      Glad you liked it, Ashley!

  22. 5 stars
    This is one of my favorite recipes that I’ve gotten from you. It’s part of my weekly Sunday meal prep. So easy and so delicious. I’ve made it so many times, I have the recipe memorized.
    I also just made your Mediterranean orzo chicken. So delicious, too.
    Thank you for these easy healthy meals!

    1. The Clean Eating Couple says:

      Thank you so much, Jennifer! This makes me so happy to hear! This is a great recipe for meal prepping and so is the orzo – that is one of my favorite meals EVER! I’m so glad you’re enjoying the recipes 🙂

  23. Kathy Reade says:

    5 stars
    Girl…these were AMAZING. Kids loved em and so did I! Put the left overs in the fridge for later!!

    1. The Clean Eating Couple says:

      Yay!! I love that your kids loved them too 🙂

  24. 5 stars
    This is one of my favorite breakfast recipes when I’m sick of eggs (and not doing a Whole 30). I love adding bananas!!! YUMMMMM!

    1. The Clean Eating Couple says:

      I’m so glad you like it! I’m totally going to try adding bananas- that sounds amazing!!

    2. Holli Backhaus says:

      Bananas in it sounds delicious! Do you just add them with the blueberries? I want to do this but wondered when you add them. Thanks!!

      1. The Clean Eating Couple says:

        You could do that! 🙂 I probably wouldn’t add more than 1/2 a cup of mashed bananas or slices!

  25. masala girl says:

    seee i’m not a *huuuge* oatmeal fan, but i do love it a variety of ways. and i ALWAYS put blueberries in it! baked oatmeal shall be a staple when school starts 🙂

    1. thecleaneatingcouple@gmail.com says:

      Blueberries make it 10x better!! I promise this recipe will make you like oatmeal 🙂