Cinnamon Baked Oatmeal

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The best Cinnamon Baked Oatmeal is an easy make-ahead breakfast that's filling, healthy, and just takes a few simple ingredients.


There is nothing better than baked oatmeal when it comes to make-ahead breakfasts. It's easy to make, takes minimal prep, and is tasty enough for busy mornings or a special occasion. 

Oatmeal is a staple in our home, but we have one family member who wants nothing to do with any type of mushy oatmeal. That's where this Cinnamon Baked Oatmeal is perfect. 

Baked oats have all the heart-healthy whole grains and fiber of oatmeal but with a totally different, light texture. It's basically like a cross between a baked oat bar and bread pudding. It is still soft and moist, but it isn't gooey or mushy at all. 

Plus this is the perfect recipe to make on the weekend and reheat for a quick breakfast during the week. My daughter loves it for breakfast, an afterschool treat (along with this Chocolate Baked Oatmeal), and even packed in her lunchbox. It's a must for busy parents looking for a make-ahead breakfast idea. 

This recipe is also a favorite because it is so flexible. Although the version I am sharing has lots of cinnamon and banana as a natural sweetener, you could easily switch things up. Add fresh fruit, sprinkle on chocolate chips, add toasted nuts. The options are endless.

Looking for more easy oatmeal recipes? Try these Slow Cooker Steel Cut Oats, Baked Oatmeal Muffins, Microwave Oatmeal, or Overnight Oats.

Baked cinnamon oatmeal served on a plate with fresh blueberries, yogurt, and honey.

The Best Easy Make Ahead Healthy Breakfast

  • Eat it all week! Make it on Sunday and eat it for breakfast and snacks all week! My kids love it in their school lunches. You can even freeze individual squares.
  • Customize it! Add fruit, chocolate chips, nuts, or seeds. Make something your home will love.
  • Minimal prep: This whole recipe can be thrown together in 5 minutes with ingredients you probably already have! No complicated steps or specialty ingredients.

Ingredients and Easy Swaps

Here’s everything you need to make this tasty baked oatmeal.

  • Rolled oats: Old-fashioned rolled oats are the key to getting a delicious hearty texture. Do not swap in another type of oats.
  • Bananas: To add natural sweetness and moisture, mashed bananas are the perfect option. If you don’t like bananas, you can swap in applesauce, mashed butternut squash, or canned pumpkin. Just note that you may need extra sweetener.
  • Unsweetened applesauce: This adds another level of moisture and natural sweetness.
  • Milk: Any type of milk will work in this recipe including nut milk and dairy milk.
  • Eggs: This binds everything together and adds a little protein. Flax eggs and chia eggs will also work. To boost the protein in this recipe, use high-protein milk, add hemp seeds, or top it with yogurt.
  • Cinnamon and vanilla extract: These warm flavors really make this baked oatmeal taste like a delicious baked good. Pumpkin pie spice, apple pie spice, nutmeg, or ginger can be used as well.
  • Brown sugar: Brown sugar is a classic ingredient in Amish baked oatmeal, but you can swap in honey or pure maple syrup.
  • Baking powder and salt: This helps the baked oatmeal to rise. It can be skipped, but the end product will be denser.

Can this be made with another type of oats? For best results, always use old-fashioned, rolled oats for this recipe. Steel-cut oats won’t cook through and stay hard. Instant oats and quick-cooking oats will get mushy.

If you need a gluten-free recipe, make sure the rolled oats are gluten-free and processed in a wheat-free facility.

Change it Up! Recipe Ideas

This baked oatmeal recipe is basically a blueprint and can be customized in so many different ways. Here are some fun additions and variations of this oatmeal recipe.

  • Dried fruit: Add raisins, cranberries, blueberries, dates, apricots, or shredded coconut.
  • Fresh fruit: Diced apples, blueberries, raspberries, strawberries, and pears are all delicious in baked oats.
  • Nuts: Add some crunch with toasted almonds, walnuts, or pecans,
  • Seeds: Make this more nutritious with chia seeds, hemp seeds, flaxseeds, or pumpkin seeds.
  • Protein powder: Add extra protein to make this oatmeal more filling. A plain or vanilla-flavored protein powder works best.
  • Chocolate: Add some sweetness and fun with chocolate chips, dark chocolate chunks, or white chocolate.
  • Nut butter: Swirl some nut butter into the batter before baking for extra flavor and healthy fats.
  • Love cinnamon rolls? Don't be afraid to drizzle a little icing (or vanilla yogurt!) on top of these baked oats. For something fast, combine 1/2 cup powdered sugar with 2 tbsp milk, and 1/2 teaspoon vanilla extract. Add two tablespoons of room-temperature cream cheese for cream cheese icing.

What about some toppings? Another fun way to add flavor to baked oatmeal is with fun toppings. Add yogurt, nut butter, fresh fruit, whipped cream, milk, honey, maple syrup, or coconut cream to your oatmeal.

Baked oatmeal with cinnamon cut into a square and served with honey and blueberries.

Storing and Freezing Baked Oatmeal

This baked oatmeal is great for meal prep and can be made in advance.

  • Storing: Since the recipe has dairy and eggs, store the baked oatmeal in the refrigerator for 4-5 days.
  • Freezing: Let the oatmeal fully cool before freezing. The whole tray can be frozen or you can freeze individual squares wrapped in plastic wrap.
  • Reheating: To reheat multiple portions, preheat the oven to 350 degrees, cover the baking dish with foil, and bake for 17-20 minutes until warmed through. Individual portions can be reheated in the microwave or toaster oven.
  • Make-ahead: To make this in advance, bake the recipe and let it cool completely. Store covered in the fridge and reheat the entire recipe with the instructions above. Do not mix the wet ingredients and dry ingredients the night before because the oats will soak up too much liquid.

Frequently Asked Questions

Here are some of the most common questions about making baked oatmaal.

The most common reason that baked oatmeal comes out soggy is that it wasn’t baked long enough. Make sure that the middle is cooked before removing it from the oven. Baked oats can also be soggy if too much liquid is used.

The egg in baked oats helps the recipe to bind together and creates a more sturdy texture. You can leave the egg out, but the recipe will be softer and mushier. Flax eggs and chia eggs can be used in place of an egg if desired.

Baked oatmeal is fairly filling on its own but it can be served with yogurt, fresh fruit, bacon, sausage, eggs, or nut butter. To an easy way to add protein, consider serving it with hard-boiled eggs, turkey bacon, or Greek yogurt.

Cinnamon oatmeal that is baked served in a dish with yogurt, honey, and blueberries.
The Recipe
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Cinnamon Baked Oatmeal

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  • 2 ripe bananas, mashed
  • 1.5 cups unsweetened almond milk
  • 1/4 cup unsweetened applesauce
  • 2 tbsp brown sugar
  • 1 egg
  • 1 tsp cinnamon
  • 1 tsp vanilla extract
  • 1.5 cups old-fashioned oats
  • 1/2 tsp baking powder
  • 1/4 tsp kosher salt

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Preheat the oven to 375 degrees. Spray an 8 by 8 pan with cooking spray or cover with parchment paper. Mash the bananas using a fork in a large bowl.


Add the milk, applesauce, brown sugar, and egg. Stir to combine.


Stir in the rolled oats, baking powder, and salt. Mix until just combined. If you are adding any extra ingredients, fold them into the oats here.


Pour into the baking dish. If desired, add a sprinkle of brown sugar over the top.


Bake for 35-40 minutes until golden brown. Let cool for 10-15 minutes before slicing.

Nutritional Facts
Serving Size: 1 square
Amount Per Serving
Calories 238
Calories from Fat 38
% Daily Value *
Total Fat 5g
Saturated Fat 1g
Monounsaturated Fat 0g
Polyunsaturated Fat 0g
Cholesterol 47mg
Sodium 271mg
Total Carbohydrate 45g
Dietary Fiber 5g
Sugars 18g
Protein 6g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.

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About the author Meet Kristen McCaffrey
Hi, I’m the cookbook author, recipe developer, and food enthusiast behind Slender Kitchen. I am obsessed with making healthy food that is easy to prepare and absolutely delicious. Meal planning is my secret weapon and I hope I can make meal time easier for you with our tried and tested recipes and foolproof meal plans. Learn More
On Cinnamon Baked Oatmeal
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June 17, 2024 - 10:51
Sounds yummy! Can I use fat-free (cow’s) milk in place of the almond milk?
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December 10, 2022 - 13:21
Add a Rating:
Very good! I like to crumble half a square over my nfg yogurt, soooo good! I added some sugar free chocolate chips and chopped pecans. Oh, yes! Yummy!
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