Breakfast/ Freezer Friendly/ Gluten Free

Healthy Blueberry Baked Oatmeal {Gluten Free, No Refined Sugar}

Blueberry Baked Oatmeal

Start your day off right with this easy, healthy Blueberry Baked Oatmeal recipe. This make-ahead breakfast casserole is perfect for a grab and go meal or a lovely addition to brunch.

I did not grow up as a breakfast food lover. In fact, I’m known to eat the previous night’s dinner for breakfast.

But that all changed when I fell in love with baked oatmeal. Filling you up without the need for a mid-morning nap, this recipe has enough protein to keep you going until lunch time!

Blueberry Baked Oatmeal

Why I love Blueberry Baked Oatmeal:

  • Baked oatmeal recipe can be made ahead of time and reheated (or eaten chilled). You can wrap individual pieces and freeze for later, too!
  • It’s portable (hello, busy farm families!)
  • With no refined sugar, it’s not overly sweet and better for you.
  • This recipe is awesome for a family or can feed a crowd (or extra hungry teenagers) when doubled
Blueberry Baked Oatmeal

Ingredients in Blueberry Baked Oatmeal

old fashioned or rolled oats: wholesome oats are the main ingredient because it’s baked oatmeal! Either of these oats work great. You won’t want to use quick oats or steel cut oats for this recipe. Use certified gluten free oats to make this a gluten free recipe.

baking soda: acts as a leavening agent, making your baked oatmeal lighter and fluffier.

cinnamon & vanilla: delicious flavor additions!

sea salt: Just a pinch works great in this recipe

eggs: act as the binder, plus they add a little protein.

maple syrup: nature’s sweetness! If you don’t have maple syrup, honey or agave nectar work.

milk: I use whole milk but you can use whatever you kind you have in your fridge. 2%, almond….I would think skim milk works too but I haven’t tried it myself.

blueberries: fresh, juicy berries if you have them. This recipe really brings out their inherent sweetness. If blueberries aren’t in season, you can substitute frozen berries. Just don’t thaw them, pop them in right from the freezer!

How to Make Blueberry Baked Oatmeal

Blueberry Baked Oatmeal unbaked

In under ten minutes, you’ll be on your way to a healthy breakfast you’ll feel good about feeding yourself and your family!

  1. Preheat your oven to 350°F. In a medium sized bowl, combine dry ingredients (oats, baking soda, cinnamon, and sea salt). Mix.
  2. In another bowl, combine 2 eggs, lightly beaten, maple syrup, vanilla extract and milk. I used whole milk but you can use whatever you have on hand. Whisk together and add to your dry ingredients.
  3. Add the wet ingredients to the dry ingredients and mix using a spoon or spatula. Fold the blueberries into the batter taking care to be gentle (don’t go crazy here, now is not the time to get your aggression out!) If you overwork the blueberries, you’ll end up with a less appetizing oatmeal bake.
  4. Grease a 9×9 baking pan. Pour in the oatmeal mixture and spread evenly. Bake for 35-40 minutes until the center is set. Allow to cool for 15-20 minutes before slicing and serving.

While it’s baking it makes the kitchen smell SO GOOD. It’s a homey, delicious scent that is edible, unlike all the candles in my household.

When my blueberry oatmeal was done baking, I took the pan out of the oven and sniffed it. Twice.

That, my friends is the sign of a good breakfast.

Can I use frozen berries?

Yes, you sure can! Add them to the recipe right before baking. Keep them frozen so you don’t have a grey-purple oatmeal.

Can this recipe be doubled?

Again, the answer is yes! Bake in a 9 x 9 dish or if doubling, a 9 x 13 pan. You could also make these this blueberry oatmeal as muffins!

Leftovers can be wrapped in plastic wrap and frozen for several months.

How to Make this Ahead:

Do you have too much time on your hands? Yeah, me either. Here are a few ways you can get ahead by making this baked oatmeal as part of your meal prep!

  • Bake this ahead of time and freeze slices, individually wrapped
  • Bake ahead of time and refrigerate
  • Assemble as instructed up until the blueberries are added and refrigerate overnight. Just before baking, add the blueberries and pour into your prepared pan.

To reheat, microwave slices on a plate for about 30 seconds. If frozen, I recommend thawing in the refrigerator overnight and then reheating.

More Blueberry Recipes

More Oatmeal Recipes

Blueberry Baked Oatmeal

Healthy Blueberry Baked Oatmeal

Yield: 9 squares
Prep Time: 5 minutes
Cook Time: 40 minutes
Total Time: 45 minutes

Start your day off right with this easy, healthy Blueberry Baked Oatmeal recipe. This make-ahead breakfast casserole is perfect for a grab and go meal, or a lovely addition to brunch.

Ingredients

  • 3 cups old fashioned or rolled oats
  • 2 tsp baking soda
  • 1 tsp cinnamon
  • ⅛ tsp sea salt
  • 2 eggs, lightly beaten
  • ½ cup pure maple syrup
  • 1 tsp vanilla extract
  • 1.5 cups milk
  • 1 pint blueberries

Instructions

  1. Preheat oven to 350°F. In a medium sized bowl, combine dry ingredients (oats, baking soda, cinnamon, and sea salt). Mix.
  2. In another bowl, combine 2 eggs, lightly beaten, maple syrup, vanilla extract and milk. I used whole milk but you can use whatever you have on hand. Whisk together and add to your dry ingredients.
  3. Add the wet ingredients to the dry ingredients and mix using a spoon or spatula. Fold the blueberries into the batter taking care to be gentle (no blueberry smushing here, we want these intact!).
  4. Grease a 9x9 baking pan. Pour in the oatmeal mixture and spread evenly.
  5. Bake for 35-40 minutes until the center is set. Allow to cool for 15-20 minutes before slicing and serving.

Notes

How to Prepare this Ahead of Time:

  • Bake this ahead of time and freeze slices, individually wrapped
  • Bake ahead of time and refrigerate
  • Assemble as instructed up until the blueberries are added and refrigerate overnight. Just before baking, add the blueberries and pour into your prepared pan.


Frozen berries may be substituted for fresh.

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Nutrition Information
Yield 9 Serving Size 1
Amount Per Serving Calories 299Total Fat 2gSaturated Fat 1gTrans Fat 0gUnsaturated Fat 1gCholesterol 45mgSodium 351mgCarbohydrates 29gFiber 2gSugar 21gProtein 4g

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8 Comments

  • Reply
    Claudia Lamascolo
    January 9, 2021 at 9:27 am

    I love that there is maple syrup in this recipe it really brought the blueberries to life in flavor!

  • Reply
    Sue
    January 9, 2021 at 9:44 am

    This looks healthy and decadent at the same time, with a drizzle of maple syrup I bet the kids will think they’re getting dessert for breakfast!

  • Reply
    Jesse
    January 9, 2021 at 10:22 am

    My family enjoyed this Blueberry Baked Oatmeal and my mother in law appreciated the fact it’s gluten-free.

  • Reply
    Dannii
    January 9, 2021 at 11:24 am

    We love making baked oats and blueberry is always our favourite.

  • Reply
    Jackie
    January 13, 2021 at 10:27 am

    Have you ever tried making muffins instead of in a pan? I have a muffin tin that makes squares and I would like to try it! Also, have you ever substituted light agave for the maple syrup? Just for myself, I use that instead. Trying to cut calories and “points.” Thank you! Can’t wait to try this recipe!

    • Reply
      Deanne Frieders
      January 13, 2021 at 11:07 am

      Hi Jackie, I’m sure you can make this as muffins instead of a pan. Baking time will be less for sure.

      Also, you could sub light agave or honey or the maple syrup. I’ll add that to the recipe, it’s a great thing to point out!!! Thanks for stopping by 🙂

  • Reply
    Pamela Thompson
    January 13, 2021 at 10:44 am

    What are reheating instructions?
    From refrigerated and from frozen please.

    • Reply
      Deanne Frieders
      January 13, 2021 at 11:08 am

      Hi Pamela!
      To reheat from refrigerated, I like to microwave for 30 seconds or so. I recommend thawing in the fridge overnight and then reheating.

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