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Oatmeal Breakfast Casserole With Blueberries

*Updated* / By: 148 Comments

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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.

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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?

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 mintue or so. Breakfast is ready.

A spoon in a bowl of blueberries and oatmeal.

More Healthy Oatmeal Recipes

Incorported into so many delicous recipes, here are a few to try:

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
Pin Recipe Print Rate
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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Reader Interactions

Comments

  1. Natalie

    Having oats for breakfast is so healthy, that’s why oats are my favorite choice in the morning. I will give your baked oatmeal recipe a try. Looks fantastic!

    Reply

  2. Claudia Lamascolo

    After reading the ingredients I can tell this is over the top tasty for breakfast. I love the addition of maple sugar and sure hope I can find it. I love that flavor, great ingredients and recipe thanks cant wait to dig into it!

    Reply

  9. Jeri

    This oatmeal breakfast casserole with blueberries is perfect for these cooler mornings. I am always the first one up in my household, and everyone woke up to the smell of this delicious casserole cooking in the oven. I can’t wait to make this recipe again! It was so good!

    Reply

  10. Lilly

    These baked oats are so delicious! I made them for meal prep this week so I wouldn’t have to think about what to have for breakfast! It’s been nice having this ready in the morning.

    Reply

  11. Kay

    What a great breakfast recipe 🙂
    This recipe has a great crunch from the oats and the sweet taste of blueberries, lush

    Reply

  13. Glenda

    A warm hug on these cool Fall mornings! I love the crunch from the almonds and the pops of sweet freshness from the blueberries!

    Reply

  14. Lillian

    This is such a satisfying breakfast recipe. It’s leaps and bounds above the classic bowl of oatmeal that I grew up with.

    Reply

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