Healthy Blueberry Baked Oatmeal is a simple make-ahead breakfast recipe that is perfect for meal prep! Gluten free, easy to make, and packed with flavor! Make them vegan, into baked oatmeal cups or add other fruit like bananas – this recipe is versatile and yummy!
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This Healthy Blueberry Baked Oatmeal is one of my favorite breakfasts!
Made with only 11 ingredients, (many of which you likely have in your pantry or refrigerator), packed with healthy whole grains, and bursting with sweet blueberries – it feels more like a treat than a nutritious breakfast!
(If you’re looking for the treat version check out this Healthy Blueberry Crisp!)
There are few things better on a chilly morning than a big bowl of warm, cozy oatmeal, right? (Maybe a Healthy Blueberry Muffin.. equally as delicious!)
For every ounce of me that loves oatmeal, there is equally the same amount of me that hates washing the pan from the oatmeal after you cook it on the stove.
IDK why, but it’s seriously always so difficult to clean!
Baked oatmeal is waaaay better for a number of reasons.
Why We Love Baked Oatmeal with Blueberries
- Cook once, eat 4 times! – This means there is only 1 time clean up.
- Portable – Can be eaten on the go or on a dish!
- Tastes great cold or warm – I prefer it warm but it’s totally yummy right out of the fridge.
- Has only 11 ingredients – nothin’ fancy – all pantry staples you probably already have!
- Takes under an hour to make!
I love making this Healthy Blueberry Baked Oatmeal on Sunday to have in the fridge for the week ahead. It takes the guesswork out of deciding what to have for breakfast, and it’s just simple to meal prep! Here’s what you need to make it.
Baked Blueberry Oatmeal Ingredients
To make blueberry baked oatmeal you’ll need:
You can find substitutions for all of these ingredients below in the green shaded substitutions box.
How to make blueberry baked oatmeal:
Making this baked oatmeal couldn’t be easier.
- Take all your ingredients
- Mix them together
- Pour them in a greased 8×8 baking dish.
You can even double this recipe – just put it in a 9×13 baking sheet.
30-35 minutes in the oven and you’ll have perfectly baked blueberry oatmeal!
Baked Blueberry Oatmeal Substitutions
This blueberry baked oatmeal can be tweaked for whatever diet/ingredients you have on hand! Here are some substitutions we recommend:
Fruit substitutions: Baked oatmeal is pretty flexible and you can make a lot of substitutions to it. You can sub in any type of fruit or berry in this recipe. I’d check out this Chocolate Peanut Butter Baked Oatmeal if you’re looking for something a little more decadent!
Frozen berries: I haven’t tried this with frozen berries – but I think it would work. I would thaw the berries completely and allow excess liquid to drain off before adding them to the batter.
Gluten Free: make sure you’re using gluten free certified rolled oats.
Milk: You can use any type of milk in this recipe. Regular dairy/non dairy will work!
Optional add ins: chopped nuts, more chocolate, shredded coconut, fresh fruit
Steel Cut Oats: You can use steel cut oatmeal in this recipe. Use 1 cup of steel cut oats and 2 cups of liquid/milk. We have a Baked Steel Cut Oatmeal recipe that you can also follow!
Quick Cook Oats: I have not tried this with quick cook oats and wouldn’t recommend it. I don’t think that it will hold up/cook correctly with the smaller oats.
Baked Oatmeal Cups: I haven’t tried baking these in muffin cups but I think it would work! The only thing I would say is it will be harder to clean up and it might stick to a muffin tin. I would grease the muffin tins or use silicone baking liners. You can bake for a little less time.
Can you prep baked oatmeal with blueberries ahead of time?
Yes! Absolutely! Mix together all ingredients and store in the refrigerator for up to 24 hours before you’re ready to bake.
How long can you keep Baked Blueberry Oatmeal
You can keep baked oatmeal stored in the refrigerator for up to a week.
If you don’t plan to eat it before then, I would slice it, wrap into individual pieces and place them in the freezer. Then you can just quickly defrost when needed!
Serving Blueberry Baked Oatmeal
This baked oatmeal is great to eat on it’s own, but you could also serve it with:
- maple syrup/greek yogurt on top
- a slice of Sausage Egg Bake for a balanced breakfast or protein, carbs and fat
- Crock Pot Breakfast Casserole
- Potato Crust Quiche
Storing Blueberry Oatmeal Bake:
Reheating baked oatmeal: This oatmeal is great when microwaved or warmed in a toaster oven.
Storing: I would not store this baked oatmeal at room temp. It likely will get moldy or stale if you don’t refrigerate it.
This baked oatmeal will last in the refrigerator for up to a week.
Freezing: Bake, slice and freeze your oatmeal. You can individually wrap it to make it easier, or allow slices to freeze and then put them in a ziploc bag or container so they don’t stick together. Baked oatmeal will last about 3 months in the freezer.
Baked Blueberry Oatmeal Recipe FAQ
Yes! Oatmeal and blueberries is a delicious, healthy breakfast. This baked oatmeal is low in fat and can be paired with eggs for a balanced breakfast.
No, baked oatmeal should not be left out overnight. For food safety reasons, refrigerate it. This recipe has milk and eggs, so it needs to be refrigerated. You can microwave it or add to the toaster oven to heat it up.
Yes, you should refrigerate baked oatmeal to keep it fresh.
Baked oats may be soggy if they are underdone. They also can get soggy from fruit. If your’e using frozen fruit make sure to thaw/drain it before adding it to baked oatmeal.
Other healthy oatmeal recipes:
We love cooking with oats! If you love oatmeal check out these other Healthy Oatmeal Recipes.
Blueberry Oatmeal Bake
- Preheat oven to 350
- In a mixing bowl, stir all dry ingredients until combined.
- In a separate bowl, whisk together coconut oil, egg, honey + milk.
- Combine wet + dry ingredients. Fold in blueberries with a spatula to prevent them from bursting
- Pour batter in a greased 8×8 pan – it will look like there is too much liquid, but it will absorb.
- Bake for 35-40 minutes, until top is golden brown and milk is completely absorbed. Enjoy warm or cold!
- Store in an airtight container in refrigerator
- Fruit substitutions: Baked oatmeal is pretty flexible and you can make a lot of substitutions to it. You can sub in any type of fruit or berry in this recipe. I’d check out this Chocolate Peanut Butter Baked Oatmeal if you’re looking for something a little more decadent!
- Make it vegan: sub egg for one flax egg, sub honey for maple syrup, make sure to use a dairy free chocolate chip
- Make it gluten free: make sure you’re using gluten free certified rolled oats.
- Optional add ins: chopped nuts, more chocolate, shredded coconut, fresh fruit