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A Blueberry Oatmeal Casserole in a Large White Pan Shown From the Top

Blueberry Baked Oatmeal

This easy Blueberry Baked Oatmeal is made with gluten-free old-fashioned oats and fresh or frozen blueberries. It's a healthy 30-minute breakfast casserole that's easy to make in advance! Dairy-free, refined sugar-free with grain-free, vegan, low carb, keto and paleo-friendly options.

Course Breakfast
Cuisine American
Keyword baked oatmeal recipe, best breakfast casserole, blueberry baked oatmeal, blueberry oatmeal, breakfast bake, easy breakfast, easy breakfast casserole
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 8
Calories 288 kcal
Author Kelly


  • 1 1/2 cups unsweetened almond milk , or any other milk
  • 2 large eggs , or flax eggs, for vegan - (For each flax egg: 1 tbsp flax seed + 2.5 tbsp water)
  • 1/2 cup maple syrup , or sub with preferred liquid sweetener such as coconut nectar syrup, honey (if not vegan), date syrup, sugar-free maple syrup or Yacon syrup for low carb / keto
  • 4 teaspoons melted coconut oil OR avocado oil *coconut oil will harden with any cold liquids - this is totally normal and will melt down once baked
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon baking powder
  • 3/4 teaspoon ground cinnamon
  • 1/8 teaspoon sea salt
  • 3 1/2 cups gluten-free old-fashioned rolled oats , for grain-free, low carb, keto and paleo, swap with an equal mix of roughly chopped coconut flakes (1 1/4 cup) and sliced almonds (1 1/4)
  • 1/2 cup fresh or frozen blueberries . plus more for topping
  • toasted coconut chips optional, for garnish


  1. Preheat oven to 350 degrees Fahrenheit. Grease a 9x13 baking pan or a 12-cup muffin tin with non-stick cooking spray or line baking sheet with silicone liners. Set aside.
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  2. Combine the eggs and milk together. Add the maple syrup, coconut oil, vanilla, baking powder, cinnamon and salt.

    Stir in the oats and blueberries.

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  3. Fill a 9×13 baking pan, a greased muffin tin or silicone muffin liners with the batter. Sprinkle with additiona blueberries, if desired.

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  4. Bake at 350°F for about 30-35 minutes in a casserole pan or 20-25 minutes in a muffin tin, until set.

    Let baked oatmeal cool for a few minutes before serving.

    Top with optional coconut chips and enjoy immediately or freeze in a freezer-safe bag or container for up to 3 months. Reheat in the microwave when ready to enjoy.

    A Blueberry Oatmeal Casserole in a Large White Pan Shown From the Top

Recipe Video

Nutrition Facts
Blueberry Baked Oatmeal
Amount Per Serving (1 serving)
Calories 288 Calories from Fat 243
% Daily Value*
Fat 27g42%
Carbohydrates 11g4%
Fiber 6g24%
Sugar 4g4%
Protein 4g8%
* Nutrition facts are provided as a courtesy using the WPRM recipe calculator. It is best to make your own calculations to ensure accuracy. We expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website. Percent Daily Values are based on a 2000 calorie diet.