Simple Baked Oatmeal With Blueberries (2024)

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What is a Baked Oatmeal Recipe?

Baked oatmeal is simply that: oats that are baked with liquid ingredients and a binder (like eggs) in a casserole dish. You can add fruit to baked oatmeal (like this recipe) or even make chocolate oats that taste like brownies!

The oats bind together while baking, so you can slice the oatmeal into bars. This is not a wet, mushy variation, like overnight oats or stove-top warm oats.

Ingredients Needed

• 2cupsold-fashioned oats (I likesprouted oats for easier digestion)
• 1teaspoonbaking powder
• 1 1/2-2teaspoonsground cinnamon(amount depends on taste)
• 3/4teaspoonsalt
• 1cupmilk: whole milk, skim milk, almond milk, cashew milk, oat milk, or coconut milk
• 1/2cuppure maple syrupor honey
• 2eggs
• 1teaspoonvanilla extract
• 2tablespoonsbutteror virgin coconut oil, melted
• 1cupfrozen blueberries or fresh blueberries (or try different fruits or chocolate chips)

Using Frozen Blueberries Tip: I love using frozen berries to make this recipe. Just likewithfrozenveggies,frozenfruitis picked in peak season, is full of nutrients, and lasts for months in the freezer!Make overnight oats with frozen blueberries, add to yogurt bowls, make smoothies, or in this baked oatmeal recipe.

Equipment Needed

• 9-inch baking pan for baking the oatmeal in the oven
• large mixing bowl for mixing the dry ingredients
• medium mixing bowl for mixing the liquid ingredients

Variations

• Protein Oatmeal: Want to up the protein content? Add a serving (or two) of your favorite protein powder (chocolate or vanilla) to the dry ingredients. I love thisprotein powder: chocolateorvanilla.
• Chocolate Chip Baked Oatmeal: Instead of fruit, use 1/2 cup chocolate chips instead. Or, use 1/2 cup chopped bananas and 1/2 cup chocolate chips!
• Apple Baked Oatmeal: Instead of using blueberries, use 1 cup of chopped apples (no need to peel).
• Lemon & Blueberry Oatmeal: Add the zest (grated rind) from 1/2 a fresh lemon to the wet ingredients. The combination of blueberries and lemon adds such a vibrant, fresh flavor. Reduce the cinnamon or skip it if using lemon zest.
• Raspberry Oatmeal: Instead of blueberries, add 1 cup fresh or frozen raspberries.
• Peach Oatmeal: Add chopped peaches to the batter instead of the blueberries.
• Carrot Cake Oatmeal: Add 1/2 cup shredded carrots, along with 1/4 cup raisins and 1/4 cup chopped walnuts to the batter.
• Add Nuts: Add 1/2 cup chopped pecans or walnuts to the dry ingredients. Or, use pepitas (pumpkin seeds).
• Oatmeal Cups: Instead of using a casserole dish, make oatmeal cups for individual-size servings.

See Also

Kanelbullar - Swedish Cinnamon Rolls - Gluten Free - Culinary ConcertoSalzburger Nockerl - David LebovitzThe Ultimate Winter Bliss BowlsGerman Plum Cake (Zwetschgenkuchen) | Plated Cravings

Substitutions

• Dairy Free: If you need a dairy-free oatmeal, the type of milk you choose to use is important. Any plant-based milk will work. Instead of butter, use melted coconut oil or vegan butter.
• Egg Free: The eggs act as a binder, so instead of mushy oatmeal, you end up with oatmeal you can cut and lift from the pan (like a bar). The best option for egg-free oatmeal is to make a “flax egg.” To do this, combine 2 tablespoons of ground flax + 5 tablespoons of warm water, let sit for 5 minutes.After letting the flax sit to gel, it should be whisked into the milk and other wet ingredients.
• Gluten Free: Some oats are processed in a facility with other wheat products, so make sure you’re buying certified gluten-free oats when making this recipe. I like One Degree sprouted oats.

How to Make Baked Oatmeal, Step by Step

Preheat oven to 350F and grease a 9-inch square baking dish with butter or oil.

Step 1: Combine Dry Ingredients

Combine the dry ingredients in a large mixing bowl: oats, baking powder, cinnamon, and salt.

Step 2: Combine Wet Ingredients (Except Butter or Coconut Oil)

In a medium-size bowl, whisk the milk, eggs, vanilla extract, and sweetener of choice (honey or maple syrup).Do not add the butter or coconut oil yet.

Step 3: Combine Wet and Dry Ingredients

Add the wet ingredients to dry ingredients and stir to combine. Finally, stir in the melted butter or coconut oil. You don’t want to stir the melted butter or coconut oil directly into the milk or you will have clumps-that’s why we’re adding it after the ingredients are mixed.

Step 4: Rest for 5 Minutes

Let the oatmeal rest for 5 minutes for the oats to absorb the liquids.

Step 5: Add Blueberries (or Other Fruit)

Gently fold the fresh or frozen blueberries into the oatmeal mixture and pour into the prepared baking pan. (I love to freeze fresh blueberries in peak season and use them to make this recipe.)

Tip: Smooth out the top of the oatmeal with your spoon or the back of a measuring cup. This will help the oatmeal “bind together” as it bakes.

Step 6: Bake for 30-35 Minutes at 350F

Bake for 30-35 minutes, until the center is firm and edges are browned. The baking time will depend on your pan. Clear glass, ceramic, and metal pans all bake at different rates. If the center isn’t firm and edges haven’t browned, continue baking until ready.

After removing from the oven, rest for at least 5 minutes before serving.

Tip: The longer the oatmeal rests, the more compact and less crumbly it will be. This makes it easier to slice and serve in bars.

How to Store & Reheat

• Fridge: Store the leftover baked oatmeal whole, in the casserole dish covered with foil, plastic wrap, or a lid. Or, cut the oatmeal into squares and store in an airtight container. Store in the fridge for up to 7 days.
• Freezer: Or freeze the oatmeal bars in an airtight bag or container for up to 3 months. Defrost on the counter or in the fridge, enjoy at room temperature or reheat.
• Serve Cold, at Room Temp, or Warm: The best part is you can serve this delicious breakfast cold from the fridge, at room temperature, or reheat in the oven (at 300F until warm enough), microwave (just a few seconds), or toaster oven.

What Goes Well With Oatmeal? Serving Ideas

• Drizzle maple syrup or honey over the top
• Add sliced bananas over the top
• Top with a spoonful of almond butter or peanut butter
• Serve in a bowl over greek yogurt
• Top slices with whipped cream (how to make homemade whipped cream, dairy or dairy-free)

Or serve with…

• Chocolate Protein Yogurt
• Scrambled Eggs
• Instant Pot Hardboiled Eggs
• Spinach Feta Omelet
• Ham and Cheese Omelet
• Sausage and Egg Breakfast Casserole
• Bacon, Kale, Potato Frittata
• Sunny Side Up Eggs

Or adda homemade drink on the side…

• Chai Latte
• Iced Chai Latte
• Hot Chocolate
• Pumpkin Spice Latte
• Mocha Latte
• Turmeric Latte

Meal Prep Tip

• Cook Once, Eat Twice: Make a batch of oatmeal on Saturday or Sunday for breakfast, and use the leftovers again on Monday and Tuesday morning. Or double the recipe to make breakfast for the whole week.
• Grab and Go: Store the oatmeal in slices in the fridge for an easy grab-n-go breakfast, along with Instant Pot hardboiled eggs, omelet cups, or chocolate protein yogurt. Divide up the oatmeal squares and a prepared protein in meal prep containers to make mornings even easier.
• Lunchbox or Snack: Add a slice to the kids’ lunchbox or enjoy for an after-school snack. See more easy school lunch ideas!

Healthy Baked Oatmeal with Blueberries

Baked oatmeal with blueberries is the perfect healthy breakfast casserole to meal prep now and enjoy all week. Change it up with different seasonal fruits or chocolate chips.

Kristin Marr

Cost: $10

Nutrition

Calories: 272kcalCarbohydrates: 42gProtein: 6gFat: 8gSaturated Fat: 3gCholesterol: 68mgSodium: 367mgPotassium: 335mgFiber: 3gSugar: 21gVitamin A: 275IUVitamin C: 2.4mgCalcium: 138mgIron: 1.6mg