Introduction

This Blueberry Lemon Baked Oatmeal is a bright, comforting breakfast that combines fresh blueberries with zesty lemon flavor. It’s easy to prepare ahead and perfect for busy mornings.

Blueberry Lemon Baked Oatmeal Recipe - Recipe Image

Ingredients

2 cups old fashioned rolled oats
1 teaspoon baking powder
½ teaspoon sea salt
2 cups plant-based milk
¼ cup lemon juice
Zest from 1 lemon
⅓ cup maple syrup
2 tablespoons plain Greek yogurt or vegan yogurt
1 tablespoon ground flaxseed
1 tablespoon melted coconut oil
1 teaspoon vanilla
2 tablespoons poppy seeds
1 ½ cups frozen or fresh blueberries (1 cup for mix-in and ½ cup for topping)
Cooking spray
Toppings: extra blueberries, fresh lemon zest, yogurt and/or maple syrup

Instructions

Step 1: Preheat the oven to 375° F and spray an 8×8 inch square baking dish with cooking spray.
Step 2: In a large bowl, mix together the oats, poppy seeds, baking powder, and salt.
Step 3: Add the plant-based milk, yogurt, lemon juice, lemon zest, maple syrup, ground flaxseed, melted coconut oil, vanilla, and 1 cup of blueberries. Stir until well combined.
Step 4: Pour the oatmeal mixture carefully into the prepared baking dish.
Step 5: Scatter the remaining ½ cup of blueberries evenly on top.
Step 6: Bake for 40 to 50 minutes until the top is golden and the oatmeal is set.
Step 7: Remove from the oven and let cool for a few minutes. Portion and serve topped with extra blueberries, fresh lemon zest, yogurt, and/or maple syrup as desired.

Tips & Variations

Use fresh or frozen blueberries depending on what you have; frozen adds a nice juiciness while baking.
Swap the lemon zest and juice for orange for a sweeter citrus option.
Add chopped nuts like walnuts or pecans for extra texture and flavor.
For a nut-free option, substitute the flaxseed with chia seeds or omit altogether.

Storage

Store leftover baked oatmeal in an airtight container in the refrigerator for up to 4 days. Reheat in the microwave or oven until warmed through. It also freezes well—wrap portions individually and thaw overnight before reheating.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use regular milk instead of plant-based milk?

Yes, regular dairy milk works just as well in this recipe and will give a slightly creamier texture.

Is this recipe suitable for vegans?

Yes, use vegan yogurt and ensure your maple syrup and other ingredients are vegan-friendly to keep it plant-based.

Blueberry Lemon Baked Oatmeal Recipe

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★★★★★

4.8 from 81 reviews

This Blueberry Lemon Baked Oatmeal is a wholesome, dairy-free breakfast that balances tangy lemon zest with sweet blueberries. Made with rolled oats, plant-based milk, and a touch of maple syrup, it offers a nutritious and flavorful start to your day. Lightly sweetened and packed with fiber, it’s perfect for a cozy morning meal or a healthy snack.

Author: Lena
Prep Time: 10 minutes
Cook Time: 45 minutes
Total Time: 55 minutes
Yield: 6 servings 1x
Category: Breakfast
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

Dry Ingredients

2 cups old fashioned rolled oats
1 teaspoon baking powder
½ teaspoon sea salt
2 Tablespoons poppy seeds
1 Tablespoon ground flaxseed

Wet Ingredients

2 cups plant-based milk
¼ cup lemon juice
Zest from 1 lemon
⅓ cup maple syrup
2 Tablespoons plain Greek yogurt or vegan yogurt
1 Tablespoon melted coconut oil
1 teaspoon vanilla extract

Fruit

1 ½ cups blueberries (1 cup for mix-in and ½ cup for topping, fresh or frozen)

Other

Cooking spray for greasing the baking dish
Toppings: extra blueberries, fresh lemon zest, yogurt, and/or maple syrup

Instructions

Prep the Oven and Dish: Preheat your oven to 375°F (190°C). Lightly spray an 8×8 inch square baking dish with cooking spray to prevent sticking.
Mix Dry Ingredients: In a large bowl, combine the rolled oats, poppy seeds, baking powder, and sea salt. Stir well to evenly distribute the ingredients.
Add Wet Ingredients and Blueberries: To the dry mix, add the plant-based milk, plain Greek or vegan yogurt, lemon juice, lemon zest, maple syrup, ground flaxseed, melted coconut oil, vanilla extract, and 1 cup of blueberries. Stir gently until all ingredients are combined and the blueberries are evenly mixed into the batter.
Pour into Baking Dish: Pour the oatmeal mixture carefully into the prepared baking dish, spreading it evenly.
Add Topping Blueberries: Scatter the remaining ½ cup of blueberries evenly over the top of the oatmeal mixture.
Bake the Oatmeal: Place the dish in the preheated oven and bake for 40 to 50 minutes, or until the top turns golden brown and the oatmeal is set.
Cool and Serve: Remove the baked oatmeal from the oven and let it cool for a few minutes before slicing. Serve portions topped with additional fresh blueberries, a sprinkle of lemon zest, a dollop of yogurt, and/or drizzle with maple syrup as desired.

Notes

If using frozen blueberries, do not thaw before adding to prevent excess moisture in the oatmeal.
You can substitute the plant-based milk with dairy milk if preferred.
For a vegan recipe, use vegan yogurt and ensure the maple syrup and other ingredients comply with your dietary needs.
Ground flaxseed acts as an egg substitute and adds fiber and nutrients.
The baked oatmeal can be stored covered in the refrigerator for up to 4 days and reheated gently before serving.

Keywords: baked oatmeal, blueberry oatmeal, lemon baked oatmeal, healthy breakfast, plant-based breakfast, vegan oatmeal option, maple syrup oatmeal