Name: Mixed Berry Baked Oatmeal Recipe
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Cuisine: American
Ingredients: 2 cups old-fashioned rolled oats; 1/2 cup chopped nuts (walnuts, pecans, or almonds); 1 teaspoon baking powder; 1 1/2 teaspoons ground cinnamon; 1/4 teaspoon salt; 2 cups mixed berries (fresh or frozen, such as blueberries, raspberries, and strawberries); 2 cups unsweetened almond milk (or other plant-based milk); 1/4 cup pure maple syrup; 2 large eggs (or flax eggs for vegan); 1 teaspoon vanilla extract; 2 tablespoons coconut oil or butter (melted); Additional berries and nuts for topping (optional)

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If you’re looking for a cozy, nourishing breakfast that tastes like dessert and fills your kitchen with the scent of cinnamon and berries, you’re in the right place. Mixed Berry Baked Oatmeal is the ultimate make-ahead breakfast for busy mornings or lazy brunches, packed with juicy berries, hearty oats, and a kiss of maple sweetness. This dish bakes up beautifully golden and holds together just right, making it easy to cut into squares for serving. You’ll never look at oatmeal the same way again!

Mixed Berry Baked Oatmeal Recipe - Recipe Image

Ingredients You’ll Need

The beauty of Mixed Berry Baked Oatmeal really lies in its simplicity — every ingredient here has a role to play, giving you a breakfast that’s equal parts comforting and vibrant. From creamy oats to bursts of juicy berries, here’s how each staple builds flavor and texture.

Old-Fashioned Rolled Oats: These form the backbone of the bake, giving substance and that homey chew.
Chopped Nuts (walnuts, pecans, or almonds): For texture, richness, and just a hint of crunch in every bite.
Baking Powder: Helps the oatmeal get a slight lift so it’s not too dense.
Ground Cinnamon: Adds warmth and depth that ties the berries and oats together.
Salt: Just enough to keep everything balanced and bring out the flavors.
Mixed Berries (fresh or frozen): The star of the show, adding pops of color, sweet-tart bursts, and natural juiciness.
Unsweetened Almond Milk (or any plant-based milk): Provides creaminess, moisture, and keeps the bake dairy-free.
Pure Maple Syrup: Naturally sweetens everything with a gentle, earthy flavor.
Eggs (or flax eggs for vegan): Binds the bake together so it holds its shape beautifully when sliced.
Vanilla Extract: Lends an aromatic note that pairs beautifully with berries and cinnamon.
Coconut Oil or Butter (melted): Gives the oatmeal its tender crumb and a delicious, subtle richness.
Additional Berries and Nuts for Topping (optional): For an extra pop of color and texture on top before serving.

How to Make Mixed Berry Baked Oatmeal

Step 1: Prep Your Dish and Oven

Start by preheating your oven to 375°F (190°C). Lightly grease an 8×8-inch (or similar-sized) baking dish with coconut oil, butter, or baking spray – this makes sure nothing sticks and you get those perfect squares when serving.

Step 2: Mix the Dry Ingredients

In a large mixing bowl, combine the rolled oats, chopped nuts, baking powder, ground cinnamon, and salt. Give them a good stir so the leavening and seasoning get evenly distributed. This step is crucial for consistent flavor and that irresistible oat-and-nut texture in every bite.

Step 3: Layer the Oats and Berries

Now for the fun, colorful part: scatter half of the oat mixture into your prepared baking dish and spread it out evenly. Sprinkle half of your mixed berries over the oats, then repeat with the remaining oat mixture and berries. Layering the ingredients like this means you get juicy berries in every forkful, not just gathered on top.

Step 4: Whisk the Wet Ingredients

In a separate bowl, whisk together the almond milk, maple syrup, eggs (or flax eggs if going vegan), vanilla extract, and melted coconut oil or butter. Whisk until the eggs are fully broken up and everything is combined. This mixture will bind the oats and make them deliciously moist.

Step 5: Pour, Soak, and Bake

Slowly pour the wet mixture evenly over the oats and berries in the dish. Use the back of a spoon to gently press down on the oats, making sure they’re all submerged in the liquid. This helps the oats soak and bake through. Slide the dish into the oven and bake, uncovered, for 35-40 minutes, until the oatmeal is golden brown on top and set in the center.

Step 6: Cool Briefly and Serve

Once baked, let your Mixed Berry Baked Oatmeal cool for at least 5 minutes. This lets it firm up so you can scoop or slice with ease. Serve it up warm with your favorite toppings or an extra splash of milk for ultimate comfort.

How to Serve Mixed Berry Baked Oatmeal

Garnishes

The right finishing touches elevate each serving, so don’t be shy with creative add-ons. Extra fresh berries scattered on top add a juicy freshness, while a handful of toasted nuts gives irresistible crunch. A dollop of creamy Greek yogurt (or coconut yogurt!) makes it truly brunch-worthy.

Side Dishes

Mixed Berry Baked Oatmeal pairs up nicely with breakfast classics. Try it alongside scrambled eggs, a smoothie loaded with greens, or a steaming mug of coffee. If you’re hosting brunch, offer a platter of sliced fruit and maybe a savory frittata to round out the meal.

Creative Ways to Present

Get fancy and cut your baked oatmeal into neat squares, topping each one with a swirl of yogurt and a sprig of mint for a brunch spread that impresses. For on-the-go breakfasts, scoop some into a mason jar and layer with extra berries for a portable parfait.

Make Ahead and Storage

Storing Leftovers

If you manage to have leftovers, store them in an airtight container in the fridge for up to 4 days. The oatmeal stays moist and the flavors seem to deepen, making each bite even more irresistible the next day.

Freezing

Mixed Berry Baked Oatmeal freezes beautifully! Let it cool completely, then slice into portions and wrap each one tightly in plastic wrap or foil. Place in a freezer-safe container or bag, and freeze for up to 2 months. It’s perfect for quick breakfasts in a pinch.

Reheating

To warm up your stored or frozen oatmeal, microwave individual squares on medium power for 45–60 seconds, or bake in an oven at 350°F (175°C) for about 10 minutes. Add a splash of milk before reheating to keep it moist and delicious.

FAQs

Can I use steel-cut oats instead of rolled oats?

The texture of steel-cut oats is quite different – they need more liquid and a much longer baking time. For best results and that classic tender bite, stick with old-fashioned rolled oats in this one.

What’s the best way to make this vegan?

Just swap the two eggs for flax eggs: mix 2 tablespoons ground flaxseed with 5 tablespoons water, let it sit until thickened, and use as directed. Stick with non-dairy milk and coconut oil for a fully vegan Mixed Berry Baked Oatmeal.

Can I use frozen berries?

Absolutely! Frozen berries are convenient and work great without even thawing. Just toss them in as is and add a couple extra minutes to your bake time if needed – they’ll release some extra moisture but the oatmeal can handle it.

Is this recipe gluten-free?

Yes, it can be! Make sure to choose certified gluten-free oats if you need to avoid gluten. All the other ingredients in Mixed Berry Baked Oatmeal are naturally gluten-free.

How sweet is this baked oatmeal?

It’s lightly sweetened with pure maple syrup and the berries add natural sweetness too. If you like a sweeter breakfast, feel free to bump the maple syrup up to 1/3 cup as mentioned in the notes.

Final Thoughts

If you’re craving a breakfast that feels like a treat but is packed with nourishing goodness, give Mixed Berry Baked Oatmeal a go. It’s one of those recipes you’ll want to make on repeat, and it’s perfect for sharing with the people you love — or packing up for a week of easy, wholesome breakfasts. Dig in and enjoy every berry-filled bite!

Mixed Berry Baked Oatmeal Recipe

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4.8 from 28 reviews

Author: admin
Total Time: 50 minutes
Yield: 6 servings 1x
Diet: Vegetarian

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Description

This Mixed Berry Baked Oatmeal is a wholesome and delicious breakfast option that’s easy to make. Packed with oats, nuts, and a variety of berries, it’s a nutritious way to start your day.

Ingredients

Scale

Oat Mixture:

2 cups old-fashioned rolled oats
1/2 cup chopped nuts (walnuts, pecans, or almonds)
1 teaspoon baking powder
1 1/2 teaspoons ground cinnamon
1/4 teaspoon salt

Berry Layer:

2 cups mixed berries (fresh or frozen, such as blueberries, raspberries, and strawberries)

Liquid Mixture:

2 cups unsweetened almond milk (or other plant-based milk)
1/4 cup pure maple syrup
2 large eggs (or flax eggs for vegan)
1 teaspoon vanilla extract
2 tablespoons coconut oil or butter (melted)

Topping:

Additional berries and nuts for topping (optional)

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Instructions

Preheat the oven to 375°F (190°C) and grease an 8×8-inch baking dish.
Combine oats, nuts, baking powder, cinnamon, and salt in a large bowl.
Layer half of the oat mixture and berries in the baking dish.
Repeat with remaining oats and berries.
Whisk together almond milk, maple syrup, eggs, vanilla, and melted coconut oil.
Pour the liquid mixture over oats and berries.
Bake for 35-40 minutes until set and golden.
Cool for 5 minutes before serving. Enjoy warm.