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Blueberry Lemon Baked Oatmeal Recipe

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3.8 from 13 reviews

Enjoy a refreshing and wholesome Blueberry Lemon Baked Oatmeal, a nourishing breakfast delight combining the bright flavors of lemon and sweet blueberries with hearty rolled oats. This easy-to-make baked oatmeal is perfect for a cozy morning, boasting a tender, golden crust topped with juicy blueberries and a hint of poppy seeds for added texture and nutrition.

Ingredients

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 & Mix-ins

  • 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
  • 1 ½ cups blueberries (1 cup for mix-in, ½ cup for topping, fresh or frozen)
  • Cooking spray for greasing the baking dish

Toppings (Optional)

  • Extra blueberries
  • Fresh lemon zest
  • Yogurt
  • Maple syrup

Instructions

  1. Prep. Preheat your oven to 375°F (190°C). Grease an 8×8-inch square baking dish thoroughly with cooking spray to prevent sticking.
  2. Mix Dry Ingredients. In a large bowl, combine the rolled oats, poppy seeds, baking powder, and sea salt, stirring well to distribute all the dry ingredients evenly.
  3. Add Wet Ingredients and Blueberries. To the oat mixture, add the plant-based milk, Greek or vegan yogurt, lemon juice, lemon zest, maple syrup, ground flaxseed, melted coconut oil, and vanilla extract. Stir everything together until well incorporated. Fold in 1 cup of blueberries gently to avoid crushing them.
  4. Pour Mixture into Dish. Carefully transfer the oatmeal mixture into the prepared baking dish, spreading it out evenly with a spatula.
  5. Top with Blueberries. Evenly scatter the remaining ½ cup of blueberries over the top of the oatmeal mixture for a burst of color and flavor.
  6. Bake. Place the baking dish in the preheated oven and bake for 40 to 50 minutes, or until the top turns a nice golden brown and the oatmeal is set.
  7. Cool and Serve. Remove the baked oatmeal from the oven and let it cool for a few minutes to firm up. Portion into servings and top optionally with extra blueberries, fresh lemon zest, yogurt, and/or a drizzle of maple syrup before serving.

Notes

  • Use either fresh or frozen blueberries; if frozen, no need to thaw before baking.
  • Plant-based milk options such as almond, oat, or soy milk work well and keep the recipe dairy-free.
  • For a vegan version, use vegan yogurt and ensure the baking powder is vegan-friendly.
  • Ground flaxseed adds moisture and acts as a binder; you can substitute with chia seeds if preferred.
  • Adjust sweetness by varying the amount of maple syrup according to your taste.
  • Allow baked oatmeal to cool slightly before cutting for clean slices.
  • Store leftovers covered in the refrigerator for up to 4 days; reheat before serving.