Grease an 8 x 8 baking dish and preheat an oven to 375F.
Combine dry ingredients in a large bowl.
3 cups rolled oats, ¼ cup ground flax, ½ teaspoon baking powder, ¼ teaspoon salt, 1 teaspoon cinnamon
Combine wet ingredients in a medium bowl and whisk until well combined.
¼ cup coconut oil , 1 teaspoon vanilla , ¼ cup maple syrup , 2 large eggs, 2 cups milk
Add wet ingredients to dry ingredients and mix well.
Fold in blueberries.
2 cups blueberries
Spread evenly in the baking dish. Bake for 30-45 minutes or until the top is golden brown and the oatmeal bake is firm or "set" in the middle.
Video
Notes
How to Store Blueberry Baked Oatmeal Store in an airtight container in the refrigerator for up to a week. Reheat in the microwave or enjoy cold! How to Freeze Blueberry Baked Oatmeal To freeze, I would let it cool completely overnight in the refrigerator or for at least a few hours. Then cut into squares and saran wrap each one individually and freeze. That way, you can unfreeze individual portions whenever you're in the mood for blueberry oatmeal! Then, thaw overnight and reheat in the microwave. Or, reheat from frozen with a damn paper cloth over it to keep it from drying out.