This Healthy Baked Oatmeal is a cozy, nourishing breakfast you can make once and enjoy all week. It’s lightly sweet, warm, and filling, perfect for busy mornings or a relaxed weekend brunch.
If you love oatmeal but want something a little more exciting, this baked version is the upgrade. It’s easy to customize, naturally sweetened, and has a soft, comforting texture that feels like a treat without being heavy.
Whisk 2 cups of almond milk with 1/3 cup of maple syrup, 1 egg, 1 1/2 teaspoons of baking powder, vanilla, cinnamon and a pinch of salt. Stir in 2 cups of rolled oats and 1 cup of blueberries, pour it into a greased 8×8 dish, and bake at 375°F for 35 minutes, until it’s set. You’ll get 9 squares.
Why You’ll Love This Baked Oatmeal
- Great for meal prep
- Naturally sweetened
- Easy to customize
- Family-friendly
- Works for breakfast or brunch
Is Baked Oatmeal Healthy?
It is when it’s made with whole, simple ingredients. Oats are naturally high in fiber and linked to healthy cholesterol levels. This baked oatmeal uses fruit, spices, and maple syrup for natural sweetness instead of refined sugar, making it both nourishing and satisfying.
What Does Baked Oatmeal Taste Like?
It has a soft, lightly chewy, custard-like texture, similar to bread pudding, but much lighter and not overly sweet.
Easy Ways to Customize
This recipe is very forgiving. Try one or more of these ideas:
- Fresh fruit: blueberries, strawberries, raspberries, blackberries
- Dried fruit: raisins, cranberries, apricots
- Different sweeteners: honey, coconut sugar, or none at all
- Omega-3 boost: flaxseed or chia seeds
- Nutty: swirl in peanut or almond butter
- Apple version: diced apples or applesauce
For Special Diets
- Vegan: use flax eggs and coconut oil or olive oil
- Gluten-free: use certified gluten-free oats
How to Serve Baked Oatmeal
Enjoy warm as-is, or add a splash of milk (dairy or plant-based) for a creamier texture. A little melted butter on top is also delicious.
How to Store & Reheat
This baked oatmeal is perfect for meal prep.
Keeps in the fridge for up to 4 days, and in the freezer for up to 3 months. Reheat slices in the microwave or oven.
Healthy Baked Oatmeal FAQs
What is the healthiest way to cook oatmeal?
The healthiest oatmeal is the one built on simple ingredients: whole rolled oats, fruit, a little natural sweetener and some healthy fat or protein. Baked, stovetop and overnight oats can all fit that, so pick the one that works for your mornings.
Is baked oatmeal healthier than overnight oats?
Both can be healthy. Baked oatmeal is warm and filling, while overnight oats are cold and quick. The health factor depends on the ingredients you add.
Is baking powder necessary?
Baking powder makes the oatmeal lighter and fluffier. You can skip it, but the texture will be more dense.
Can I use quick oats or steel-cut oats?
Stick with old-fashioned rolled oats. Quick oats soak up the liquid too fast and turn mushy, and steel-cut oats won’t soften in this baking time. If you love steel-cut, make my Steel-Cut Oats on the stovetop instead.
Can I use frozen blueberries?
Frozen berries work great, and there’s no need to thaw them first. Stir them in straight from the freezer so they don’t turn the whole dish purple.
Is oatmeal gluten-free?
Oats are naturally gluten-free, but may be cross-contaminated during processing. If needed, choose certified gluten-free oats.
Can I make baked oatmeal vegan?
Use a flax egg and coconut oil or olive oil instead of butter or dairy, plus maple syrup as the sweetener.
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Baked Oatmeal with Blueberries
- Prep Time: 5 minutes
- Cook Time: 35 minutes
- Total Time: 40 minutes
- Yield: 9 squares
- Category: Breakfast, Dessert
- Method: Bake
- Cuisine: America
Description
This Healthy Baked Oatmeal with Blueberries is warm, lightly sweet, and perfect for meal prep. Made with wholesome ingredients and naturally sweetened, it’s an easy make-ahead breakfast that feels cozy without being heavy.
Ingredients
- 2 cups unsweetened almond milk (or any type of milk you prefer)
- 1/3 cup maple syrup (OR honey, or sweetener of your choice; more or less to taste)
- 1 large egg (or 1/4 cup applesauce, or 1 flax egg if preferred)
- 1.5 teaspoons baking powder
- 1 teaspoon vanilla extract
- 1 teaspoon cinnamon
- 1/4 teaspoon fine sea salt
- 2 cups whole rolled oats
- 1 cup berries of your choice, fresh or frozen (we like blueberries)
- Optional: 1/4 cup chopped nuts or seeds of your choice (we like slivered almonds or sunflower seeds)
- Optional: 2 tablespoons melted butter or ghee, slightly cooled
Instructions
- Preheat the oven to 375°F.
- Lightly grease an 8×8 baking dish (or equivalent) with extra virgin olive oil or coconut oil.
- In a medium mixing bowl, whisk together the almond milk (or milk of your choice), egg, maple syrup (or honey), vanilla, cinnamon, baking powder and 1/4 teaspoon sea salt.
- Stir in the oats and seeds/nuts and berries, if using. The melted butter should be stirred in with the oats, if using.
- Pour into the baking dish.
- Bake 35 minutes, until the oats have absorbed the liquid and the oatmeal is set.
- Let cool 10 minutes and serve warm, room temperature, or cold. Keeps in the fridge up to 4 days.
Nutrition
- Calories: 188 (per serving WITH the walnuts)
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There is a reference to baking powder but the ingredient list doesn’t include it, can you clarify? Also if you add the butter does it just get added in the final mix?
Whoops, sorry about that! Add 1.5 teaspoons of baking powder to the mixture when you add the spices. It’s actually ok if you don’t add it, it will just be a bit flat. The baking powder helps make it fluffy so I recommend it! The melted butter should be stirred in with the oats, if using.
Can I use steel cut oatmeal for this recipe?