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Mixed Berry Baked Oatmeal

October 17, 2025 by Emily Leave a Comment

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This mixed berry baked oatmeal recipe comes together with only five minutes of hands on time. Made with whole ingredients and packed with sweet and tart berries, this is sure to become a family favorite. It’s great plain or paired with some whipped cream or milk. Allow it to chill and you’ve got some homemade granola bars 🙂

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Ingredients for mixed berry baked oatmeal

ingredients for baked oatmeal on counter
  • Oats – use rolled or old fashioned oats in this recipe.
  • Eggs – eggs from pastured hens are the most nutritious but they are expensive. Use what you can afford. If you have picky eaters, this is a great recipe to get them eating more protein.
  • Milk – you can use any kind of milk you prefer. Even the nut or oat “milks” if you can’t have dairy.
  • Pure maple syrup – just a bit of this gives the oats a slightly sweet taste that helps persuade your picky eaters to try this.
  • Mixed berries – we use a blend of blueberries, blackberries, and raspberries. Feel free to use any berries you have on hand, especially those which are in season.
  • Pure vanilla extract – please don’t use that imitation stuff. The real stuff is the only thing you should consume and it’s super affordable if you make it yourself.
  • Baking powder
  • Sea salt – we love Redmond’s Real Salt. It’s packed with minerals our bodies need, plus it’s so delicious.
  • Ground cinnamon – this is optional, but it really rounds out the flavor of this dish. Bonus, it also gives the house a nice smell.
  • Chia seeds – I like to add this from time to time for extra nutrients.

How to make baked oatmeal

This is such an easy recipe to whip up, it’s definitely one of my favorite on busy mornings. Especially when I didn’t prep overnight oats or granola and yogurt. These crepes are great for special occasions but I don’t always want to stand around a stove for half an hour… 😅

Preheat your oven to 375F and grease your baking dish with butter, lard, or other cooking fat. An 8×8″ casserole dish or an 8″ cast iron pan are perfect for this.

ingredients for baked oatmeal in mixing bowl
mixed ingredients for baked oatmeal

Add all of your ingredients into a large mixing bowl and mix until everything is fully combined. Dump into the cooking vessel of your choice and bake for 40-50 minutes or until it’s done to your liking. Set with golden edges is what you want to look out for.

unbaked oatmeal in cast iron pan
fully cooked mixed berry baked oatmeal

We prefer to serve this warm, however, if you chill it you’ll end up with granola bars which makes for a great snack. This mixed berry baked oatmeal goes great with yogurt, milk, or whipped cream. You could also drizzle a little honey over the top once it’s done baking for a little extra nutrients and sweetness. Of course, use raw local honey if you want the nutritional benefits.

If you are left with any leftovers, store them in the fridge. You may find you prefer this mixed berry baked oatmeal chilled. It’ll stay good for up to five days. Simply reheat in the microwave if you’d like. If you give this recipe a try let me know what you think in the comments below. I hope you all love it as much as we do!

Happy baking 😊

Mixed Berry Baked Oatmeal

Emily
This hearty and delicious breakfast comes together with only five minutes of hands on time. Your family will love this nourishing, hearty breakfast.
Print Recipe Pin Recipe
Prep Time 5 minutes mins
Cook Time 45 minutes mins
Course Breakfast
Servings 8

Ingredients
  

  • 3 cups oats rolled or old fashioned
  • 3 large eggs
  • 2 cups mixed berries
  • 1 1/4 cup milk
  • 1/3 cup maple syrup or honey
  • 2 tsp pure vanilla extract
  • 1 tsp baking powder
  • 1/2 tsp sea salt
  • 1/2 tsp ground cinnamon
  • butter or other oil for greasing baking dish

Instructions
 

  • Preheat oven to 375F
  • Combine all ingredients in a large bowl and mix until combined.
  • Grease 8×8 baking dish, or 8" cast iron pan with butter or other cooking fat.
  • Bake for 40-50 minutes or until the eggs are cooked to your liking and the oatmeal is golden brown.
  • Serve warm with a dollop of whipped cream, yogurt or a splash of milk. Or, simply enjoy as is.

Notes

You can add any variety of fruits your heart desires, fresh or frozen. 
We like to add 1/4 cup of chia seeds from time to time for extra nutrients. Feel free to make other additions to this baked oatmeal like chopped nuts, dates, or even chocolate chips. 
Store leftovers in an airtight container in the fridge for 3-5 days. 
Keyword baked oatmeal, breakfast, mixed berry, oatmeal

Filed Under: Breakfast, Casseroles, Homemaking, In the Kitchen Tagged With: baked oatmeal, breakfast, homemaking

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Hi guys!

Hi! I’m Emily and that handsome man is my hubby. I’m a wife, mother of four handsome boys, avid gardener and homemaker. Follow along for healthy recipes, gardening and homemaking tips, and so much more! Read more about me here.

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