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    Home » Recipes

    Oatmeal Breakfast Casserole With Blueberries

    October 19, 2021 *Updated* June 21, 2022 / By: Gloria Duggan | Homemade & Yummy 146 Comments

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases. Disclosure Policy.
    Jump To Recipe

    Baked Oatmeal Breakfast Casserole is a warm and delicious way to start your day.

    A savory baked oatmeal casserole packed with lots of healthy ingredients. Great as an addition to the brunch menu. It’s like a warm and cozy sweater for your taste buds.

    Baked Oatmeal Breakfast Casserole with almonds in white bowl.

    Breakfast is the most important meal of the day. We have all heard this for years. You can likely remember your grandmother saying it to you, I know I do.

    I love oatmeal recipes in the morning. This versatile ingredient can be used in so many delicious ways. Have you tried baked chocolate strawberry oatmeal? It’s like having dessert for breakfast.

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    Baked breakfast casserole in the baking dish ready to go into the oven.

    Baked breakfast donuts are a hit with the grandkids. They always ask for them on sleepover weekends. Yes, you can eat donuts for breakfast.

    Oatmeal pancakes are hearty and nutritious, protein-rich and so satisfying.

    Homemade muesli cereal is so much better than store-bought. You can easily customize it just the way you like.

    If you are into overnight oatmeal, this chocolate oatmeal recipe is sure to be a hit. After all, who doesn’t want to eat chocolate in the morning?

    Speaking of overnight oatmeal recipes, this blueberry and banana oats recipe is a delicious and healthy way to start the day.

    RECIPE and INSTRUCTIONS for this baked blueberry oatmeal can be found at the bottom of this post.

    Blueberry oatmeal casserole in the baking dish right out of the oven.

    Healthy Baked Oatmeal Ingredients

    • Old fashioned oatmeal, regular oats work well too.
    • Blueberries, either fresh or frozen.
    • Almonds, I like sliced but slivered are fine.
    • Milk, both regular and non-diary work in this recipe.
    • Maple sugar, however brown sugar or coconut sugar are great alternatives.

    You can easily swap out ingredients in this breakfast casserole. There isn’t a wrong way of enjoying oatmeal for breakfast.

    Breakfast casserole with oatmeal and blueberries in a baking dish.

    Making Oatmeal Breakfast Casserole Is Easy

    It’s as easy as 1-2-3:

    1. Preheat the oven, and spray a baking dish.
    2. Mix all the ingredients in a large bowl.
    3. Pour into the prepared pan and bake.

    Honestly, even the kids can do this. Once baked, place in serving bowls, garnish with additional berries and milk and dig in.

    Store leftovers in a sealed container in the fridge.

    Substitutions

    • Dairy and non-diary milk can be used. My new favourite non-dairy milk is oat milk. Almond milk, soy or coconut would be great too.
    • Almonds can be swapped out for pecans, walnuts, pistachios, or whatever your favourite nut is.
    • Maple sugar is so delicious, but feel free to use brown sugar, coconut sugar or even maple syrup or honey.
    • Old-fashioned oats are great for any baking recipe. Regular oats are fine. Steel-cut oats will not work well in this casserole.
    • Blueberries can be fresh or frozen. You can also use apples, pears, or any other berry you like.
    Milk getting poured onto oatmeal.

    FAQ

    Is baked oatmeal healthy?

    Yes, baked oats are nutritious and filling. This recipe is like eating a healthy cake for breakfast.

    Can baked oats be reheated?

    This is the perfect breakfast recipe for reheating. I like to make lots so we can reheat on busy weekdays. Just pop a bowl in the microwave for a minute or so. Breakfast is ready.

    A spoon in a bowl of blueberries and oatmeal.

    More Healthy Oatmeal Recipes

    Incorporated into so many delicious recipes, here are a few to try:

    • No-Bake Granola Bars are perfect for lunch boxes, snacking, or eating on the run.
    • Granola Dust is a great topping for yogurt.
    • Chewy Granola Bars are soft and filled with lots of nutritious ingredients.
    • Trail Mix Bites are fun to make. These are grandkid approved.

    Of course, we cannot resist chewy oatmeal cookies, or apple muffins with oatmeal.

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    Baked Blueberry Oatmeal Pin
    Oatmeal Breakfast Casserole Featured Image

    Baked Oatmeal Breakfast Casserole

    Baked Oatmeal Casserole with almonds and blueberries is a delicious way to start the day.
    5 from 53 votes
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    Course: Breakfast
    Cuisine: Canadian
    Keyword: Baked Oatmeal,, Healthy Breakfast
    Prep Time: 10 minutes
    Cook Time: 35 minutes
    Total Time: 45 minutes
    Servings: 6 people
    Calories: 410kcal
    Author: Gloria Duggan | Homemade & Yummy

    Ingredients

    • 2 cups old fashioned rolled oats
    • 1 cup sliced almonds
    • 1 ½ cups blueberries (fresh or frozen) (if using frozen, partially thaw)
    • 2 cups milk (regular or non dairy)
    • ½ cup maple sugar
    • additional berries (for garnish)

    For topping:

    • ¼ cup sliced almonds
    • ¼ cup maple sugar
    US Customary – Metric

    Instructions

    • Preheat oven to 350º F.
    • Spray and 8×8 inch baking dish with cooking spray.
    • In a large bowl, combine all ingredients (except toppings) and mix well.
    • Pour into prepared baking dish.
    • Sprinkle on the toppings.
    • Bake for 35-40 minutes.
    • Remove from oven and let rest for 10 minutes.
    • Cut into squares. Place into serving bowl.
    • Serve with additional milk and fresh berries.

    Nutrition Information

    Calories: 410kcal | Carbohydrates: 54g | Protein: 12g | Fat: 18g | Saturated Fat: 3g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 8mg | Sodium: 45mg | Potassium: 458mg | Fiber: 5g | Sugar: 31g | Vitamin A: 134IU | Calcium: 194mg | Iron: 3mg

    Notes

    You can easily replace the oats with gluten free oats, and the milk with non dairy options. Sweeten with maple syrup or honey instead of the maple sugar. 
    This is perfect made on the weekend for brunch. Leftovers are great for easy, healthy breakfast throughout the week.
    Frozen berries can be used in place of fresh berries. 
    Tried this recipe?Take a picture and tag @homemadeandyummy
    Nutritional information on this site is generated via a plugin. I am not responsible for the accuracy of the plugin information.

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    MEET THE AUTHOR

    Gloria Duggan is the author for Homemade & Yummy, where she creates fun and easy recipes. She is also a brand ambassador/influencer for well-known companies. Gloria has judged food competitions and has posted about local food events. Gloria's work has been featured in magazines, and she has been interviewed on several podcasts. Read More…

    Reader Interactions

    Comments

    1. Natalie

      November 01, 2021 at 5:55 am

      That was delicious! I had frozen blueberries in my freezer so I made this for breakfast. Easy recipe and totally worth trying. Super delicious and healthy. Win!

      Reply
      • Gloria Duggan | Homemade & Yummy

        November 01, 2021 at 9:12 am

        This breakfast casserole is like eating dessert for breakfast.

    2. Jamie

      November 01, 2021 at 2:15 am

      This is my kind of breakfast! I love the combination of blueberries and almonds in this oatmeal. Even better that I can enjoy it all week.

      Reply
      • Gloria Duggan | Homemade & Yummy

        November 01, 2021 at 9:12 am

        So glad you enjoyed this baked breakfast casserole.

    3. Elaine

      October 31, 2021 at 6:59 pm

      I could make this healthy recipe every morning. It is a fantastic start to the day and a great healthy way to enjoy breakfast.

      Reply
      • Gloria Duggan | Homemade & Yummy

        November 01, 2021 at 9:13 am

        So glad you enjoyed this breakfast casserole.

    4. Megan Ellam

      October 31, 2021 at 5:09 pm

      So delicious and easy to make. Thanks so much for making my meals taste so much better.

      Reply
      • Gloria Duggan | Homemade & Yummy

        November 01, 2021 at 9:13 am

        You are very welcome. ENJOY!

    5. silvia

      October 31, 2021 at 11:23 am

      I love how easy is to make it, this is my kind of recipe for those days when I want to make a breakfast that feeds a crowd. I think I’m going to make it again for the holidays when I have family over.

      Reply
      • Gloria Duggan | Homemade & Yummy

        November 01, 2021 at 9:13 am

        This is the perfect breakfast casserole for feeding a crowd.

    6. Chandice Probst

      October 31, 2021 at 10:15 am

      This is one of my favorite breakfasts and my kids love it too! Easy, delicious and nutritious… Thank you so much!

      Reply
      • Gloria Duggan | Homemade & Yummy

        November 01, 2021 at 9:15 am

        You are welcome. We all need easy and delicious recipes in our lives.

    7. Alex

      October 31, 2021 at 3:29 am

      I’m not normally an oatmeal eater but this was fantastic! So much flavor and so easy!

      Reply
      • Gloria Duggan | Homemade & Yummy

        October 31, 2021 at 9:23 am

        It’s hard to resist chocolate in the morning.

    8. Erin

      October 31, 2021 at 2:53 am

      Maple and almonds is such a wonderful combination! Especially for breakfast. I’m saving this for later this week! Can’t wait.

      Reply
      • Gloria Duggan | Homemade & Yummy

        October 31, 2021 at 9:24 am

        ENJOY, this is a favourite around here too.

    9. Lori | The Kitchen Whisperer

      October 30, 2021 at 8:58 pm

      It is dessert? Is it breakfast? Who cares?! As this is AMAZING! I’m so loving this Gloria! This is absolutely incredible!!! It’s so cozy and comforting!

      Reply
      • Gloria Duggan | Homemade & Yummy

        October 31, 2021 at 9:24 am

        It’s dessert for breakfast. ENJOY!

    10. Amy Liu Dong

      October 30, 2021 at 9:57 am

      I love this breakfast recipe. It is so easy and delicious. Yum!

      Reply
      • Gloria Duggan | Homemade & Yummy

        October 31, 2021 at 9:24 am

        You are welcome. Dig in!!

    11. Gail Montero

      October 22, 2021 at 8:44 pm

      I love baked oatmeal so this tasty recipe is right up my alley! So wholesome and healthy!

      Reply
      • Gloria Duggan | Homemade & Yummy

        October 25, 2021 at 9:16 am

        This baked oatmeal recipe is like having dessert for breakfast.

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