Bursting with juicy blueberries and loaded with wholesome apples, this Blueberry Apple Baked Oatmeal is an easy make-ahead breakfast you can enjoy all week long!
A Delightfully Cozy Breakfast Idea
Do your mornings need a makeover? I think most of us would agree that mornings can be… less than festive, at times. So how about adding a warm and cozy, nutritious breakfast to your AM lineup?
And, not anything difficult or time-consuming. I’m talking as easy as cereal. As easy as a frozen waffle! But, SO much better!
This nourishing baked oatmeal is a sweet, simple breakfast that you can make once, refrigerate, and then serve each day for a whole week! All you have to do is keep it in the fridge, and then quickly warm it up each morning by microwaving it or heating it on the stovetop for a few minutes.
You’ll have a satisfying start to your day with a minimum of time, and maximum flavor.
What You’ll Need
Think of this recipe as a good base for all kinds of customizations. Almost every ingredient can be swapped for something else. Make it your own, and see the “Tips for Success” section below for hints!
- Oats: Old-fashioned rolled oats are the base of this easy oatmeal bake.
- Sugar: You’ll need some light brown sugar to sweeten the oatmeal. If you prefer, use maple syrup or honey instead.
- Pecans: Chopped pecans add a great texture. You could also use walnuts.
- Cinnamon and Nutmeg: You could also substitute pumpkin pie spice or apple pie spice for a slightly different spin.
- Baking Powder: To keep the oatmeal light, you’ll need a little baking powder (not baking soda).
- Eggs: A couple of eggs help bind the oatmeal mixture together, making it a “bake” rather than just oatmeal.
- Milk: Whole milk gives a creamier taste, but skim milk or 2% are also fine.
- Vanilla: For the best flavor, use pure vanilla extract.
- Butter: Melt the butter so it can be mixed into the oatmeal.
- Apples: I use a combo of Honeycrisp apples and Granny Smith. Any firm, flavorful apples are good!
- Blueberries: Either fresh or frozen, whichever you have!
How to Make Blueberry Apple Baked Oatmeal
You can throw this baked oatmeal together on the weekend to prep for the week ahead, and since it’s so easy, you won’t feel like you’re wasting your valuable weekend hours on work. Win-win!
- Prep the Oven and Baking Dish. Before you get started, you’ll want to preheat oven to 375˚F, and grease a 9-inch baking dish with butter.
- Combine the Dry Ingredients. In a mixing bowl, combine the oats, brown sugar, pecans, cinnamon, baking powder, salt, and ground nutmeg. Gently whisk all of that goodness together a little bit, and set aside.
- Combine the Liquid Ingredients. In a separate mixing bowl, whisk the eggs to break them up, and then whisk in the milk, vanilla, and melted butter.
- Assemble the Casserole. Add the milk mixture to the oat mixture, and stir them up until completely incorporated. Then, arrange the apples and blueberries on the bottom of your greased baking dish. Pour the oatmeal mixture over the fruit, and smooth out the top with a spoon or spatula.
- Bake. Bake the oatmeal for 40 minutes, or until bubbly and golden on top. Take it out of the oven, and let it stand for about 20 minutes before serving.
Baked Oatmeal Variations
If you want to customize the flavors, try some of the following easy variations! The fruit, milk, and oats are all up for grabs in this flexible recipe.
- Swap Out the Fruit: You can use all kinds of fruit in baked oatmeal, from strawberries to pears to rhubarb (well, rhubarb is a vegetable, but you know). I would advise using relatively sweet, low-acid fruits similar to blueberries and apples here, as oranges, pineapple, and other highly acidic fruits will not bake up as well.
- Make it Dairy-Free: If you prefer, you can use non-dairy milk like almond milk, cashew milk, or coconut milk in this recipe!
- Swap Out the Oats: Rolled oats are my go-to, but steel-cut are also great in baked oatmeal. Steel cut oats will need a longer baking time – around an hour should do it.
A scoop of baked oatmeal is a scrumptious breakfast all on its own. But if you’d like to make it part of a larger breakfast or brunch, try one or two of these easy breakfast recipes!
- An Omelette: Eggs for breakfast are great, but an omelette is even better! This easy Baked Denver Omelette is a great option!
- Bacon: Take the hassle out of making bacon by baking it! Crispy Oven Baked Bacon will be your new breakfast favorite.
- Blueberry Sauce: You can drizzle syrup over your oatmeal, or go with this homemade Easy Blueberry Sauce for extra blueberry awesomeness.
How to Store and Reheat Leftovers
- To refrigerate baked oatmeal, pack it into airtight containers and store in the fridge for up to 5 days.
- To freeze, place portions in airtight containers or freezer bags, and store in the freezer for up to 3 months.
- To reheat, place the oats in the microwave in a microwave-safe bowl for 30 seconds at a time, stirring each time, until hot all the way through. You can also place the oats in a saucepan, covered, over low heat (add a splash of milk or water if the oats seem dry).
Can I Make Blueberry Apple Baked Oatmeal Ahead?
- Yes! In addition to just baking the oatmeal and reheating it, you can also assemble the casserole, cover it, and bake it freshly the following morning. Easy!
Blueberry Apple Baked Oatmeal
- 2 cups old fashioned rolled oats
- ½ cup light brown sugar
- ½ cup chopped pecans
- 2 teaspoons ground cinnamon
- 1 teaspoon baking powder
- ½ teaspoon salt
- ⅛ teaspoon ground nutmeg
- 2 large eggs
- 2 cups milk
- 2 teaspoon pure vanilla extract
- 2 tablespoons butter, melted
- 5 cups cubed apples, I use a combo of honeycrisp apples and Granny Smith
- 1 cup blueberries
- Preheat oven to 375˚F.
- Grease a 9-inch baking dish with butter and set aside.
- In a mixing bowl combine oats, brown sugar, pecans, cinnamon, baking powder, salt, and ground nutmeg; whisk until well incorporated; set aside.
- In a separate mixing bowl whisk the eggs to break them up.
- Add milk to the eggs and whisk to combine.
- Whisk in the vanilla and melted butter.
- Add the milk mixture to the oat mixture and stir until completely incorporated. Set aside.
- Arrange the apples and blueberries on the bottom of the previously prepared baking dish.
- Pour the oatmeal mixture over the fruit and smooth out the top with a spoon.
- Bake for 40 minutes, or until bubbly and top is golden.
- Remove from oven and let stand 20 minutes.
- Serve warm or at room temperature.
BethDec 14, 2021 at 5:54 pm
Now that’s what I call a breakFEAST! This is the perfect thing to make and have on hand for a quick, healthy breakfast.
Katerina PetrovskaDec 21, 2021 at 2:49 pm
Thank YOU! I hope you’ll enjoy it! 🙂
ErikDec 14, 2021 at 6:41 pm
Love this flavor combo. So perfect for breakfast!
Katerina PetrovskaDec 21, 2021 at 2:48 pm
Thank YOU! I hope you’ll enjoy it! 🙂
ToniDec 15, 2021 at 10:21 am
This is really good!! Everyone at my house loved this day starter!
Katerina PetrovskaDec 21, 2021 at 2:47 pm
That’s great! I’m very happy everyone loved it! Thank YOU! 🙂
AmandaDec 17, 2021 at 8:46 am
My kids love this baked oatmeal! And it’s so simple.
Katerina PetrovskaDec 21, 2021 at 2:45 pm
I’m very happy everyone loved it! Thank YOU! 🙂
Bao VuAug 22, 2022 at 9:45 am
The top layer of oatmeal turned out to be dry and crumbly. I had a feeling that it would become like that. Next time, I will let the oatmeal sit in the liquid mixture overnight before preparing the apple and blueberries then pour the soaked iatmesl over them.