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    Home » Recipes » Breakfast

    Healthy Baked Oatmeal with Bananas

    Published: Jul 24, 2020 · Modified: Feb 20, 2023 by Maria Doss · This post may contain affiliate links · 3 Comments

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    Easy Gluten Free Baked Oatmeal recipe is not overly sweet, made with wholesome nutritious ingredients and requires minimal prep. This is a great oatmeal for a crowd or to be baked now and enjoyed for the rest of the week or made into baked oatmeal cups.

    casserole dish with banana baked healthy oatmeal.

    Evenings are beginning to get cooler and the "school at home" is scheduled to begin in a couple of weeks. So, it is time to move away from Overnight Oats weather to our trusty Oven.

    Busy mornings with everyone at home always means a refrigerator with stocked up goodies. Even better if it is made with simple and healthy ingredients like omelette, muffins, smoothies or healthy bars.

    This recipe is technically a breakfast bread pudding but much, much healthier. It loaded with wholesome ingredients like rolled oats, milk, almond butter (or use peanut butter), banana and eggs for binding. It will keep you full all morning long and a great healthy breakfast idea for kids before they head out to school.

    What is Baked oatmeal?

    Baked oatmeal is a warm breakfast casserole that is baked and it has structure! Oatmeal is a more creamy porridge like consistency that is made fresh on the stovetop or microwave enjoyed hot. On the other hand, this is more of a breakfast casserole, that is cut into squares and enjoyed. A totally different way to eat oatmeal for breakfast.

    My favorite part? It can be made ahead, refrigerated and reheated for a quick grab-and-go breakfast for the rest of the week.

    Baked oatmeal vs Cooked Oatmeal

    Regular oatmeal (made in stove top, instant pot, microwave or air fryer, yes you might love this creamy oatmeal made in air fryer) has a creamy porridge like consistency, but baked oatmeal is made much like bread pudding, where bread is replaced by oats and other healthy ingredients to make hearty and soft casserole dish with a texture.

    Baked oatmeal vs Overnight oats

    Overnight oats is uncooked oats that is soaked overnight in liquid, which results in the oats soaking up all the liquid and is eaten cold straight out of the refrigerator (perfect for summer months). Whereas, easy baked oats recipe is cooked and eaten warm.

    VERY HEALTHY BAKED OATMEAL RECIPE

    • Easy - just stir, dump and bake
    • Made with whole some ingredients
    • Mildly sweet
    • Great for serving a crowd
    • Minimal dishes
    • Can be made gluten free
    • Can be made vegan / vegetarian
    • Use your favorite add-ins
    • Great for breakfast or snack anytime
    • Meal prep recipe
    • Adaptable for allergies
    healthy served oatmeal squares served on black plates.

    Ingredients:

    For this banana baked oatmeal recipe you will need:

    Old fashioned Oats - This recipe works with old fashion oats (We used Quaker oats) and not other kinds like steel cut or quick cooking oats. Use gluten free certified oats for a gluten free option.

    Ground cinnamon - Ground cinnamon is the only flavoring used here. Vanilla extract / Ground Nutmeg (for some Fall vibes) can be used if desired.

    Banana - Select well ripened bananas and mash them well before using, This is one of the main sweetener for the recipe.

    Almond or Peanut butter - Creamy almond butter or peanut butter may be used and Sun butter for a nut free option.

    Eggs - Eggs are main binding ingredient. Use 2 large eggs and it does not matter if they are at room temperature or cold.

    Coconut Oil - Melted (not hot) coconut oil or melted butter may be used (again not hot)

    Milk - Whole, reduced fat or fat free are all good options.

    Brown sugar - Golden or light brown sugar is recommended.

    Sliced Almonds - Sliced almonds or chopped walnuts will be great here. More details on toppings are listed below.

    How to make baked oatmeal?

    Step-1: Stir oats, ground cinnamon, baking powder and salt together in a bowl.

    Step-2: In another larger bowl, whisk mashed bananas, eggs, almond/peanut butter and coconut oil together. Add milk and mix until smooth.

    Step-3: Add the dry ingredients and mix until combined.

    Step-4: Transfer into a greased 9x9 inch baking pan and sprinkle your favorite toppings. Bake for about 40 minutes or until golden. Cool completely before cutting into squares.

    Expert tips

    Make ahead instructions: Baked and cooled oatmeal can be refrigerated for up to a week. To reheat - remove one slice from the refrigerator and microwave for about 30 seconds (or longer) to heat up.

    9x13 inch pan - The recipe can be doubled to make into a 9x13 inch easy baked oatmeal.

    Make it right away - Bake the oatmeal as soon as you make the batter. Do not let it hang out on the counter (or fridge). This will let the oats absorb the liquid.

    Don't over-bake to get the best baked oatmeal texture.

    Let it cool for cleaner cut portions.

    Can I skip baking powder? Baking powder lifts it up and makes it more lighter instead of being dense. However, you can skip it if you wish to.

    Can I use steel cut oats?

    No. Old fashion oats or rolled oats are the only type of oats that will work in this recipe.

    Did it turn out soggy? That could be because the oats was not baked enough or the liquid proportion was off.

    Recipe adaptations for food allergies

    Dairy free - Use almond milk, oat milk, coconut milk (does add a strong coconut flavor) or other dairy free milk instead of the regular milk.

    Gluten Free - Use Gluten free certified oats

    Peanut Allergy - Use Almond butter

    Nut allergy - Use Sun butter

    Egg allergy - Replace eggs with flax eggs or add more banana (use 1 medium mashed banana for 1 egg) or applesauce instead (the slices might not be as neat).

    Make it vegan - Using plant based milk and replacing eggs with flax eggs/ mashed banana / applesauce, makes it a vegan baked oatmeal.

    Toppings:

    Any of these or a combination will make a delicious topping-

    • Sliced almonds
    • Chopped Walnuts
    • Chopped toasted Pecans
    • Shredded Coconut
    • Semi sweet Chocolate Chips (highly recommended)
    • A drizzle of almond or peanut butter after it has cooled
    • Sliced Bananas, strawberries, blueberries, chopped apples are all great options

    Best banana Baked Oatmeal Add-ins:

    You can use any of these ingredients to stir into the batter before baking-

    • Chopped nuts (walnuts, pecans, almonds....)
    • Raisins
    • Dried cranberries
    • Shredded coconut
    • Semi sweet chocolate chips
    Removing a baked oatmeal square from the pan
    the texture of a thick slice of baked oatmeal square

    Serving suggestions

    It is more of a healthy breakfast pudding! Serve it with a drizzle of maple syrup and fresh berries.

    Storing instructions

    Refrigerate oatmeal in airtight container for 4 to 5 days or freeze for up to 1 month. To freeze - cut oatmeal into squares, wrap each sqaure in plastic wrap and place in a sealed gallon size zip lock bag. This makes it easier for reheating.

    Re heating instructions

    To reheat from the pan, wrap pan in foil and bake in pre heated 350 degree oven for 15 to 20 minutes or until heated through.  cover with foil and reheat in the oven at 350ºF for about 20 minutes or until warm. 

    To reheat frozen squares, place a square in a microwave safe plate and nuke for about a minute.

    Frequently asked questions

    Is baked oatmeal healthy?

    This recipe is made with wholesome and nutritious ingredients like old fashion oats, milk, almond butter or peanut butter, banana and eggs. So, it is very healthy!

    Can you use instant oats for baking?

    Instant oats does not hold up to the baking process and requires much less liquid. Hence, it will make the dish soggy and a mushy mess. So, we highly recommend using only rolled oats.

    Bring a hot baked oatmeal dish from the oven.

    More tasty oatmeal recipes:

    Carrot Cake Oatmeal

    Oatmeal Pancakes no Flour

    Instant Pot Oatmeal 

    Breakfast oatmeal cookies

    Rolled Oats in Air Fryer

    Instant Pot Apple Cinnamon Oatmeal with Rolled Oats

    gluten free baked oatmeal with bananas topped with fresh fruits.

    Healthy Baked Oatmeal with Bananas

    This Healthy Baked Oatmeal recipe is made with wholesome ingredients like oats, milk, banana, almond or peanut butter and eggs. An easy breakfast casserole great for a grab and go breakfast for the week.
    5 from 7 votes
    Print Pin Rate
    Course: Breakfast
    Cuisine: American
    Prep Time: 10 minutes
    Cook Time: 40 minutes
    Total Time: 50 minutes
    Servings: 9
    Calories: 343kcal
    Author: Maria Doss

    Ingredients

    Dry Ingredients

    • 3 cups old fashion oats
    • 1 and ½ teaspoon baking powder
    • 1 teaspoon ground cinnamon
    • ¼ teaspoon salt

    Wet ingredients

    • 2 medium bananas mashed (about ½ to ¾ cup)
    • 2 eggs large
    • ½ cup almond butter or peanut butter
    • ½ cup brown sugar not packed or maple syrup
    • ¼ cup melted coconut oil or melted butter, not hot
    • 1 and ½ cups milk

    Optional ingredients for Topping

    • 2 tablespoon sliced almonds / chopped walnuts / chocolate chips / shredded coconut / chopped apples / berries

    For serving (optional)

    • Maple syrup / Berries
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    Instructions

    • Pre heat oven to 350°F and spray a 9x9 inch baking pan with non-stick cooking spray and set aside.
    • Add all dry ingredients into a medium bowl, stir well and set aside.
    • Add all wet ingredients (except milk) into another larger bowl and whisk until smooth. Mix in milk followed by the dry ingredients and mix well, until thoroughly combined.
    • Pour into the prepared baking pan and sprinkle sliced almonds or any other toppings that you desire on top. Bake for 35 to 40 minutes, or until the top is lightly golden.
    • Optional step - If you like a more deep brown top (as seen in pictures), then after 35 minutes of baking time, switch oven to broiler mode and cook for 4-6 minutes. Keep a close watch to make sure that it does not burn.
    • Place baking pan on a wire rack to cool completely. Slice and serve with a drizzle of maple syrup if desired and fruits.

    Notes

    Make it Nut-Free - Use Sun butter instead of almond/peanut butter and skip the chopped nuts on top.
    Make it Gluten-Free - Use gluten free oats
    Make it vegan - Use non-dairy milk and flax eggs
    Add-ins - You can use any of these ingredients to stir into the batter before baking - Chopped nuts / Raisins / Dried cranberries / Shredded coconut / Semi sweet chocolate chips.
    Make ahead instructions: Baked and cooled oatmeal can be refrigerated for up to a week. To reheat – remove one slice from the refrigerator and microwave for about 30 seconds (or longer) to heat up.
    9×13 inch pan – The recipe can be doubled to make into a 9×13 inch easy baked oatmeal.
    Make it right away – Bake the oatmeal as soon as you make the batter. Do not let it hang out on the counter (or fridge). This will let the oats absorb the liquid.
    It is not good served cold. Enjoy warm or room temperature.

    Nutrition

    Serving: 1slice | Calories: 343kcal | Carbohydrates: 40g | Protein: 9g | Fat: 18g | Saturated Fat: 6g | Polyunsaturated Fat: 9g | Cholesterol: 42mg | Sodium: 114mg | Fiber: 5g | Sugar: 15g

    Nutritional information is based on third party calculations, should be considered estimates and not be construed as a guarantee. Varying factors such as product types, brands purchased, produce, the way ingredients are processed and more change the nutritional information in any recipe.

    Did you make this recipe?Mention @KitchenAtHoskins or tag #kitchenathoskins!

    Some of the links above are affiliate links, which pay me a small commission for my referral at no extra cost to you! I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Thank you for supporting kitchenathoskins.com

    All contents and images are my original work, unless and otherwise mentioned. Please do not use my recipes or images without linking back to www.kitchenathoskins.com. If you wish to republish a recipe, please rewrite in your own words and don’t forget to include a link back to the original recipe.

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    Reader Interactions

    Comments

    1. Kelly @ Kelly Lynns Sweets and Treats

      July 24, 2020 at 12:59 pm

      I was just thinking about a baked overnight oatmeal dish and bam! Your post arrived in my in box! I will definitely need to try this!! Pinning 🙂

      Reply
    2. Jacquiline

      October 10, 2020 at 12:32 am

      I love seeing ur food and want to follow andkniw hiw to make it..🥰🥰

      Reply
      • Maria Doss

        October 12, 2020 at 1:22 am

        We will do something about it soon🥰😍😘

        Reply

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    Maria Doss
    Maria Doss

    I am Maria Doss, the recipe creator, photographer and writer behind Kitchen at Hoskins. Here you'll find lots of creative recipes that use clever techniques or flavor profiles. It might intertwine two cuisines together to create a perfect blend or use an innovative technique.
    About Maria ->

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