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.
Combine the eggs and milk together. Add the maple syrup, coconut oil, vanilla, baking powder, cinnamon and salt.
Stir in the oats and blueberries.
Fill a 9×13 baking pan, a greased muffin tin or silicone muffin liners with the batter. Sprinkle with additiona blueberries, if desired.
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.