This Healthy Baked Oatmeal is perfect for breakfast! Learn how to make the best baked apple oatmeal that is easy to make and delicious!
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Warm apples, hearty oatmeal, crunchy pecans.. what’s not to love about this easy apple baked oatmeal?
Gluten free, delicious, and simple to make – baked oatmeal is hands down one of our absolute favorite breakfast recipes (which is why we have so many versions! Carrot Cake Baked Oatmeal, Chocolate Peanut Butter Baked Oatmeal, Blueberry Baked Oatmeal to name a few!)
Our favorite thing about baked oatmeal is that instead of having to stand by the stove and watch your breakfast, all the oatmeal ingredients get tossed together and baked in the oven for a simple meal!
Why we love this Oatmeal Bake recipe
There is a lot to love about this boneless chicken breast recipe. It’s one of our favorite proteins for a healthy dinner because it’s:
- Meal prep friendly – Bake once, eat all week for breakfast. Rather than cleaning a sticky pan every morning, you’ll have 2 dishes to wash!
- 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!
You can find substitutions for all of these ingredients below in the green shaded substitutions box.
How to make Healthy Baked Oatmeal
Making healthy baked oatmeal is so easy!
- Take all your ingredients
- Mix them together
- Pour them in a greased 8×8 baking dish.
- Bake at 350 degrees for 35-40 minutes until solidified. Cool + slice!
If you love easy breakfast recipes – this is truly the recipe for you!
Baked Oatmeal Recipe Substitutions
Fresh Apples vs Canned Apples: Fresh apples work best in this recipe. We don’t recommend using canned apples.
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 for the apples. I’d check out this Chocolate Peanut Butter Baked Oatmeal or Healthy Blueberry Baked Oatmeal if you’re looking for something a little more decadent!
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, chocolate, shredded coconut, or more fresh fruit would be delicious.
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!
Rolled Oats vs Quick Oats-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 I Make Oatmeal Bake in advance or overnight?
Yes you can make baked oatmeal in advance! We would recommend baking, cooling and reheating this, rather than letting the batter sit overnight.
This oatmeal bake also reheats really well so feel free to bake it and then just pop it in the microwave or oven when ready to eat.
If you’d like to prep the dry ingredients and the wet ingredients separately for the batter that would work fine, but don’t mix your batter and leave it in the refrigerator overnight as it might absorb all the liquid.
How to store Apple Baked Oatmeal
Storing: Do not store this healthy 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 baked oatmeal: 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.
How to reheat Healthy Baked Oats
You can easily reheat apple baked oatmeal! This oatmeal is great when microwaved or warmed in a toaster oven.
Every microwave and toaster oven will be a little bit different but it should be warmed through in under 1 minute in the microwave
Apple Oatmeal Bake FAQ
Yes, baked oatmeal is healthy! It’s loaded with fiber, healthy carbs, and whole grains! You can customize baked oatmeal to be higher in protein or healthy fats depending on what you need but it is a very healthy meal!
Yes, oats can go in the oven. They’re best when mixed with milk, an egg and a little bit of sweetener
Oatmeal is a very healthy breakfast. The healthiest way to cook oatmeal is on the stove or in the oven. You can use milk or water, a little bit of honey and some chopped nuts to make a delicious breakfast.
Old fashioned rolled oats are most commonly used in baking. Some recipes call for quick cook oats or oat flour. Most baking recipes do not use steel cut oatmeal.
Pretty much any apple will work in this recipe. The best apples for baking are Pink Lady apples.
They’re a little sweet and a little tart so I find them perfect in baking recipes!
Braeburn or Honeycrisp are also delicious and hold up well. Really – any apple will work in this recipe!
We don’t recommend using Granny Smith or other tart apples in this recipe. If you’re looking to learn more about baking/apples check out this post goes in depth on the best apples for baking.
Baked oats are oatmeal. Baked oats are oatmeal that has been baked, while oatmeal could be cooked on the stove.
Baked oatmeal is good the next day! It’s great when stored in the refrigerator and reheated.
You can put egg in baked oats if you’d like or you can make them without eggs.
Oatmeal bake does need to be refrigerated. It will get moldy if left on the counter because of the moisture and because there are no preservatives in the oatmeal.
Other healthy oatmeal recipes:
If you love oatmeal check out these other Healthy Oatmeal Breakfast Recipes. Here are some of our favorite healthy recipes that use oatmeal.
Apple Baked Oatmeal Recipe
- Preheat your oven to 350 degrees
- In a mixing bowl, add all ingredients until combined.
- 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 the top is golden brown and the milk is completely absorbed. Enjoy warm or cold!
- Store in an airtight container in the refrigerator. Do not store this healthy 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.