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This easy baked oatmeal is the best way to start your day! It’s almost like eating a warm oatmeal cookie in a bowl. Naturally sweetened with honey or maple syrup and filled with fruit. This single serving breakfast is baked in one pan for easy cleanup.

baked oatmeal with blueberries in a white square baking dish.

Oats are always a wonderful choice for breakfast but this unique healthy baked oatmeal is perhaps my favorite way to enjoy eating them.

Baked oatmeal is a little like a breakfast casserole made with oats, milk, spices, egg, and often fruit. It’s one of my favorite healthy oatmeal recipes.

Why I Love This Recipe

In this baked oatmeal recipe, a layer of fruit lines the bottom of a buttered oven-safe dish.

We love using blueberries, fresh or frozen but feel free to use your favorite fruits in this oatmeal recipe. Sliced bananas, sliced strawberries, and chopped apples are wonderful additions.

The fruit is topped with a blend of oats and spices. A mixture of milk, melted butter, vanilla, an egg, and a touch of maple syrup or honey is whisked together and drizzled over the top.

The oatmeal casserole bakes in the oven and can be enjoyed soon after. Enjoy the oats hot, served with milk, yogurt or cream, drizzled with additional honey or as is.

RELATED: 20 Breakfast Recipes “For One” That Are Worth Waking Up For

blueberries, bananas, oats, honey and butter on a brown cutting board.

Ingredient Notes

See recipe box below for ingredient amounts and full recipe instructions.

  • Oats: Use old-fashioned oats for best results.
  • Cinnamon and salt: I love adding a little cinnamon to my baked oatmeal but feel free to experiment with different spices in your recipe.
  • Milk: Any percentage of cow’s milk or you can use almond, soy, or coconut milk instead.
  • Butter: Use salted butter.
  • Vanilla extract: For flavor.
  • Egg: 1 large egg is all you need.
  • Honey: This baked oatmeal is not a sweet breakfast. I like using only a small amount of honey because I will often add additional fruit or vanilla yogurt to the top. Be sure to sweeten it as you prefer. If you think you’d like your oatmeal to be a little sweeter, add additional sweetener.
  • Fruit: Use blueberries or your favorite fruit. You can use fresh or frozen and thawed fruit.

RELATED: 15 Easy Dessert Recipes For One

How To Make This Recipe

  1. Mix together the dry ingredients.
  2. Whisk together the liquid ingredients.
  3. Line a small dish with fruit.
  4. Pour the oat mixture over fruit.
  5. Spread the oat mixture evenly over the fruit.
  6. Pour egg/milk mixture over everything and bake.
Six photos showing how to make baked oatmeal

After about 40 minutes in the oven, the oatmeal is ready to enjoy!

a fork filled with oatmeal and fruit.

RELATED: Apple Recipes For One

Expert Tips

  • Baked oatmeal comes together quickly and easily. The best part about this recipe is that it’s easily customizable. Just remember the formula of one part dry ingredients, one part wet ingredients, one egg, and about a tablespoon of honey.
  • 1/4-cup of oats seems to be the ideal amount of oats for one person and make sure the liquid ingredients measure to be the same amount (1/4-cup) before adding the egg.
  • Feel free to experiment with different spices in your recipe. Nutmeg and cardamom are great choices.
  • You do not have to use cow’s milk in this recipe. Almond milk, soy milk, and coconut milk make excellent choices.
  • Sweeten your baked oatmeal to taste. I use a small amount of sweetener in this recipe because I often like to add fruit to the top or serve it with vanilla yogurt.
  • If you think you’d like your oatmeal to be a little sweeter, add additional sweetener.
  • We love using blueberries, fresh or frozen but feel free to use your favorite fruits. Sliced bananas, sliced strawberries, and chopped apples are wonderful additions.
  • Enjoy baked oatmeal hot, served with milk, yogurt or cream, drizzled with additional honey or as is.

Frequently Asked Questions

Can You Reheat Baked Oatmeal?

Yes, the crisp, golden-brown oatmeal is as delicious fresh out of the oven as it is reheated the next day in the oven or microwave.

What Size Baking Do You Use For A Single Serving Baked Oatmeal?

In this baked oatmeal recipe, I use a 5-inch baking dish. This dish holds about 1.5 cups and has an area of 25 square inches. A 4×6-inch dish has an area of 24 square inches and will work as well. For best results, use a dish of similar size. See our FAQ page for additional information on baking dish sizes.
For examples of the dishes used at One Dish Kitchen, please visit our Store page.

Ways To Use Leftover Ingredients

If you have any ingredients leftover from this baked oatmeal recipe, you might like to consider using them in any of these single serving and small batch recipes:

If you’ve tried this baked oatmeal or any recipe on One Dish Kitchen please let me know how you liked it by rating the recipe and telling me about it in the comment section below.

If you take a picture please tag us on Instagram (@onedishkitchen) we’d love to see!

RELATED: 40 Easy Recipes For College Students


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Recipe

Baked Oatmeal For One

4.95 from 36 votes
Prep: 10 minutes
Cook: 40 minutes
Cool: 5 minutes
Total: 55 minutes
Servings: 1 serving
This Easy Baked Oatmeal is the best way to start your day! It's almost like eating a warm oatmeal cookie in a bowl. Naturally sweetened with honey or maple syrup and filled with blueberries or your favorite fruit. This single serving breakfast is baked in one pan for easy cleanup.

Ingredients 
 

  • 1/4 cup old fashioned oats
  • 1/8 teaspoon ground cinnamon
  • 1/8 teaspoon kosher salt
  • 1/4 cup 1% milk (may also use almond or soy milk)
  • 1 tablespoon salted butter , divided
  • 1/4 teaspoon vanilla extract
  • 1 tablespoon honey
  • 1 large egg
  • 1/4 cup blueberries (you want to line the bottom of your baking dish with fruit. Use up to 1/2 cup of fruit if necessary)

Instructions 

  • Heat oven to 350 degrees F (177 degrees C). Generously butter the insides of a 5-inch baking dish with ½ tablespoon of butter.
  • In a small bowl, mix together the oats, cinnamon, and salt.
    uncooked oatmeal in bowl
  • In another small bowl, whisk together the milk, ½ tablespoon melted butter, vanilla, honey, and egg.
    mixing liquid in measuring cup
  • Arrange the blueberries in a single layer in the bottom of the prepared baking dish. 
    berries in baking dish
  • Sprinkle the dry ingredients over the fruit.
    pouring oatmeal into backing dish
  • Next, pour the wet ingredients over everything.
    oatmeal and water in baking dish
  • Bake until the top is golden brown, 40-45 minutes.
    baked oatmeal with berries in bowl

Video

Notes

Expert Tips
  • Baked oatmeal comes together quickly and easily. The best part about this recipe is that it’s easily customizable. Just remember the formula of one part dry ingredients, one part wet ingredients, one egg, and about a tablespoon of honey.
  • 1/4-cup of oats seems to be the ideal amount of oats for one person and make sure the liquid ingredients measure to be the same amount (1/4-cup) before adding the egg.
  • Feel free to experiment with different spices in your recipe. Nutmeg and cardamom are great choices.
  • You do not have to use cow’s milk in this recipe. Almond milk, soy milk, and coconut milk make excellent choices.
  • Sweeten your baked oatmeal to taste. I use a small amount of sweetener in this recipe because I often like to add fruit to the top or serve it with vanilla yogurt.
  • If you think you’d like your oatmeal to be a little sweeter, add additional sweetener.
  • We love using blueberries, fresh or frozen but feel free to use your favorite fruits. Sliced bananas, sliced strawberries, and chopped apples are wonderful additions.
  • Enjoy baked oatmeal hot, served with milk, yogurt or cream, drizzled with additional honey or as is.

Nutrition

Serving: 1serving, Calories: 358kcal, Carbohydrates: 40g, Protein: 11g, Fat: 18g, Saturated Fat: 9g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 5g, Trans Fat: 1g, Cholesterol: 219mg, Sodium: 347mg, Potassium: 274mg, Fiber: 3g, Sugar: 24g, Vitamin A: 755IU, Vitamin C: 4mg, Calcium: 119mg, Iron: 2mg

The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

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88 Comments

  1. I agree with Dianne, having the pictures sprinkled among the directions is difficult. It was difficult for me because I had to keep scrolling back up to get the amount of each ingredient. However, the recipe was delicious. I would be interested to know how long it needs to cook in an air fryer.