Skip to Content

Blueberry Baked Oatmeal Recipe

Blueberry baked oatmeal on a plate with the text "Blueberry baked oatmeal"

Need an easy breakfast that will save you time in the mornings AND is healthy for you?

Enter: baked oatmeal.

Now, oats are a serious powerhouse of nutrition. They’re a good source of fiber and protein, both of which keep you full for longer periods of time. And both have other health benefits as well, including helping with weight loss.

Not only that, but oats are also heart-healthy. Whole grains have been shown to help lower bad cholesterol and lower risk of heart disease- which is super relevant for my family, who deals with high cholesterol!

Most people are just familiar with a regular bowl of oatmeal. Overnight oats are also a favorite. But baked oatmeal is almost like a cake- soft, sweet, and delicious! And they’re a great way to get in nutrients on those busy mornings.

This is a healthy breakfast the whole family can enjoy on those cold mornings. And you can make a big batch- double or triple the recipe- and freeze, or eat from all week!

Blueberry baked oatmeal on a plate, sitting next to a banana

Can you use quick oats in this recipe?

There are a few different oat varieties! I typically use old-fashioned oats in my recipes, but you can use quick oats too if that’s what you have.

The difference is that quick oats will have a softer, less chewy texture than old fashioned oats. That’s because quick oats are chopped up smaller so they cook more quickly.

I don’t recommend steel cut oats as they cook much differently and couldn’t be used as a replacement for old fashioned oats.

Can this recipe be made vegan?

This is such a versatile recipe! There are many ways to modify this, especially to make it vegan! Here are some substitutions:

  • Use a flax egg instead of a regular egg. To make a flax egg, use 1 tablespoon ground flaxseed and 3 tablespoons water.
  • Use almond milk, coconut milk, oat milk, or your favorite non dairy milk instead of cow milk.
  • Use olive oil or coconut oil as the fat. A lot of baked oatmeal recipes use melted butter; I use olive oil in this recipe, but you could do either.
  • Use pure maple syrup instead of honey as the sweetener.

What other recipes help lower cholesterol?

Oats are definitely good for heart health, but there are many other breakfasts that don’t use oats!

Make sure you check out my post on Low Cholesterol Breakfast Recipes to get more healthy recipes!

What can you serve with baked oatmeal?

A lot of times you can eat this by itself. I like a drizzle of maple syrup on top for extra sweetness, too. Or a tablespoon or two of peanut butter or almond butter for extra healthy fats!

If you need more food to go with it, like for a brunch, I recommend the following:

  • Protein (Sausage links or patties, bacon, Greek yogurt, cottage cheese, eggs)
  • Fresh fruit (Bananas, apples, oranges, or another type of fruits)

How do you make Blueberry Baked Oatmeal?

Ingredients for blueberry baked oatmeal

Here are the main ingredients:

  • Walnuts (Other nuts are fine too, but omit if needed)
  • Old fashioned oats
  • Ground flaxseeds (Chia seeds would be good here too)
  • Milk
  • Eggs
  • Honey/maple syrup (Brown sugar is fine too)
  • Vanilla extract
  • Cinnamon
  • Baking powder
  • Salt
  • Olive oil
  • Blueberries (Fresh blueberries or frozen blueberries would work just fine- no need to thaw the frozen ones)

Start by preheating the oven to 375 degrees and greasing an 8×8 casserole dish.

A bowl containing dry ingredients for blueberry baked oatmeal

In a large bowl, combine the oats, walnuts, cinnamon, baking powder, and salt.

A large bowl containing wet ingredients for blueberry baked oatmeal

In a medium bowl, combine the milk, eggs, honey, vanilla, and olive oil.

A bowl containing combined ingredients for blueberry baked oatmeal

Pour the wet ingredients into the dry ingredients and stir to combine.

A bowl containing combined ingredients for blueberry baked oatmeal

Gently fold in the blueberries using a spatula.

Unbaked blueberry baked oatmeal in a casserole dish

Pour the oat mixture into the casserole dish and bake for 35-40 minutes until the top is browned.

Baked blueberry baked oatmeal in a casserole dish

Once the baked oatmeal is done and cooled slightly, cut into 6 pieces and serve. Let any leftovers come to room temperature before storing in the fridge for 5-6 days.

You can also reheat it the next morning; either in the microwave, oven, or toaster oven. Sometimes I put a piece in a bowl and pour a bit of extra milk on top!

Other healthy oatmeal recipes

Need some more oat recipes to satisfy those cravings? Here are some of my tried-and-true favorites!

A slice of blueberry baked oatmeal on a plate, next to a banana

This is such a great recipe to meal prep on a Sunday afternoon and have a nutritious breakfast for the rest of the week. Print the recipe now:

Blueberry Baked Oatmeal Recipe

Blueberry Baked Oatmeal Recipe

Yield: 6 pieces
Prep Time: 10 minutes
Cook Time: 40 minutes
Total Time: 50 minutes

Need an easy breakfast for the week? This Blueberry Baked Oatmeal is full of healthy ingredients to keep you full longer!


  • 2 cups rolled oats
  • 2 teaspoons cinnamon
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1/2 cup chopped walnuts
  • 3 tablespoons ground flaxseed (Optional)
  • 1 3/4 cup milk
  • 2 eggs
  • 1/3 cup honey or maple syrup
  • 2 tablespoons olive oil
  • 2 teaspoons vanilla extract
  • 1 cup blueberries, fresh or frozen


  1. Preheat the oven to 375 degrees and grease an 8x8 casserole dish.
  2. In a large bowl, combine the oats, cinnamon, baking powder, salt, walnut, and optional flaxseed.
  3. In a smaller bowl, combine the milk, eggs, honey, olive oil, and vanilla extract.
  4. Pour the wet mixture into the dry mixture and use a spatula to combine.
  5. Add the blueberries and gently fold in.
  6. Pour the oat mixture into the casserole dish and spread evenly. Bake for 35-40 minutes until the top is browned.
  7. When it's cooled slightly, slice into 6 pieces. Store any leftovers in the refrigerator for 5-6 days.
Nutrition Information:
Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 371Total Fat: 17gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 13gCholesterol: 68mgSodium: 319mgCarbohydrates: 46gFiber: 5gSugar: 24gProtein: 10g


Friday 29th of July 2022

This is very good. I make it almost every week and eat it for breakfast. Delicious!


Saturday 16th of April 2022

I was wondering if you have tried assembling this the night before and then baking the next morning. Do you think that would work?


Monday 18th of April 2022

I've never tried it, but I think it would work just fine!


Thursday 3rd of February 2022

I've been wanting an oatmeal bake and I ran across this recipe. I can't find flaxseed in my little town and I didn't have blueberries. But you know me and how I sometimes improvise, so I looked around to see what I could use. I had a package of cut up figs and even found dried cherries. So I added the dried fruit and walnuts to complete the recipe. The dried fruit and walnuts were the star! I cut a piece while it was still warm and drizzled maple syrup over it. It was so good I had to go back for more. Eating it warm really hit the spot. This is a great recipe and I've added it to my collection. I love how you can add different flavors to it and it turns out so good! ? Thanks for sharing this recipe!


Monday 24th of January 2022

This sounds SO good, definitely going to try it. Thanks for the recipe!


Wednesday 19th of January 2022

Could I use chia seeds instead of flax seed? I have been making overnight oats with a banana and pb powder or dried apricots with all spice, cinnamon and a little ginger and vanilla. I'm definitely going to try this. Thank you.


Wednesday 19th of January 2022

I'm sure you could! Although I don't know if you need to add extra liquid. =) If you try it, let us know how it works out!

This post may contain affiliate links. Please refer to my disclosure policy for more information.

Skip to Recipe