Blueberry Baked Oatmeal

Name: Blueberry Baked Oatmeal
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Ingredients: 6 cups rolled oats; 1 1/2 cups brown sugar; 4 teaspoons baking powder; 4 teaspoons ground cinnamon; 2 teaspoons salt; 4 eggs; 3 cups milk; 2/3 cup melted butter; 4 teaspoons vanilla; 3 cups blueberries

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If you’re looking for simple breakfast ideas, you’ll love this blueberry baked oatmeal. It’s made with hearty oats, warm cinnamon, and sweet blueberries, that bakes up soft and filling. It’s an easy breakfast recipe that’s perfect for busy mornings and makes enough to feed the whole family.

Glass baking dish filled with blueberry baked oatmeal, with golden oats and whole blueberries baked across the top.

This baked blueberry oatmeal, just like my other baked oatmeal recipes, works so well for meal prep because you can make a big pan ahead of time and reheat servings throughout the week. It’s a great option when you need easy breakfast ideas that are filling, practical, and simple to make.

A Quick Look At The Recipe

Recipe Name: Blueberry Baked Oatmeal
Cook Time: About 50 minutes
Servings: 12
Main Ingredients: Oats, blueberries, milk, cinnamon, eggs
Dietary Info: Vegetarian, gluten-free, family-friendly, budget-friendly
Difficulty Level: Easy

Why You’ll Love This Blueberry Baked Oatmeal

Great For Meal Prep: This baked blueberry oatmeal reheats well, making it perfect for quick breakfasts during the week.
Easy To Make: Everything mixes together in one bowl with simple ingredients and very little prep.
Filling And Hearty: The oats, eggs, and milk make this a hearty breakfast that keeps you full longer.
Big Batch: This recipe makes a large batch, making it a great option for busy mornings or brunch.

Ingredients

6 cups rolled oats
1 1/2 cups brown sugar
4 teaspoons baking powder
4 teaspoons ground cinnamon
2 teaspoons salt
4 eggs
3 cups milk
2/3 cup melted butter
4 teaspoons vanilla
3 cups blueberries

How To Make Blueberry Baked Oatmeal

Start by preheating your oven to 350°F. Lightly grease a 9×13 baking pan and set it aside.

Mixing bowl with oats, brown sugar, cinnamon, baking powder, and salt ready to be stirred.

In a large mixing bowl, combine the oats, brown sugar, baking powder, cinnamon, and salt. Stir until everything is well mixed.

Mixing bowl with oats, eggs, oil, and brown sugar is ready to be stirred.

Add the eggs, milk, melted butter, and vanilla. Stir well until everything is fully combined.

Fresh blueberries added to a bowl of mixed oats and wet ingredients for blueberry baked oatmeal.

Unbaked blueberry baked oatmeal mixture in a glass baking dish, with oats and whole blueberries spread through the batter.

Fold in the blueberries, then pour the mixture into the prepared baking pan.

Bake for 40 to 50 minutes, or until the center is set and the top is lightly golden.

Glass baking dish of blueberry baked oatmeal with golden oats and whole blueberries cooling on a wooden board.

Let it cool slightly before serving.

Slice of blueberry baked oatmeal with golden oats and whole blueberries on a white plate with a fork behind it.

Recipe Notes & Tips

Use rolled oats – Rolled oats, also called large flake oats, give the best texture for baked oatmeal.
Fresh or frozen blueberries both work – Frozen berries can be added straight from the freezer without thawing.
Customize the liquid – You can use all milk, all water, or a combination of both, depending on your preference.
Butter or oil both work – Melted butter adds a richer flavor, while oil works well for a lighter option.
Don’t over-bake – The oatmeal should be set in the center but still soft. It will continue to firm up slightly as it cools.
Great for reheating – Store leftovers in the fridge and reheat individual portions for quick breakfasts.

Substitutions

Butter – Vegetable oil also works well.
Milk – You can also use water or a dairy-free milk like almond milk or coconut milk.

More Baked Oatmeal Recipes:

FAQ’s

Yes. Frozen blueberries work well and can be added directly to the batter without thawing.

Store it in the fridge, covered, for about 4 to 5 days.

Yes. Slice it into portions and freeze for quick breakfasts later.

Yes, this recipe works very well for meal prep and reheats nicely.

You can use dairy or non-dairy milk, or even part water if preferred.

The center should be set and no longer look wet when it’s finished baking.

Blueberry Baked Oatmeal

This blueberry baked oatmeal is a hearty breakfast made with oats, blueberries, and cinnamon. Easy to make, filling, and perfect for family breakfast, brunch, or meal prep.

Prep Time 10

Cook Time 40

Total Time 50

Serving Size servings

Ingredients

6 cups rolled oats
1 1/2 cups brown sugar
4 teaspoons baking powder
4 teaspoons ground cinnamon
2 teaspoons salt
4 eggs
3 cups milk
2/3 cup melted butter
4 teaspoons vanilla
3 cups blueberries

Instructions

Preheat oven to 350°F and grease a 9×13 baking pan.
In a large bowl, combine oats, brown sugar, baking powder, cinnamon, and salt.
Stir in eggs, milk, melted butter, and vanilla until well combined.
Fold in the blueberries, then pour the mixture into the prepared pan.
Bake for 40–50 minutes until the center is set.
Cool slightly before serving.

Notes

Use 3 cups of liquid, which can be all milk, water, or a mix.
You can substitute the butter for vegetable oil.

Nutrition

These values are from a nutritional database and automatically calculated, and should only be used as an approximation.

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Kim

Kim Mills is a homeschooling mom of 6 and lives on an urban homestead in Ontario, Canada. Blogging at Homestead Acres she enjoys sharing tips to help you save money, grow and preserve your own food.