Preheat oven to 350°F. Coat a 9-inch deep pie plate with nonstick spray.
Toss the oats, ¼ cup almonds, brown sugar, baking powder, cinnamon and salt together in a large bowl.
Add the almond milk, egg, vanilla, almond extract and 1 cup of blueberries and stir well to combine using a large rubber spatula.
Scatter remaining 1 cup blueberries in prepared dish. Scrape oatmeal mixture over the fruit, then top with the remaining ¼ cup almonds.
Bake for about 40 to 45 minutes or until oatmeal is set; the mixture will be lightly browned. Serve warm or cool to room temperature, cover with plastic wrap and refrigerate up to 3 days.
Serve with additional almond milk or even a dollop of yogurt.
Recipe by Bakepedia at https://www.bakepedia.com/blueberry-almond-baked-oatmeal-recipe/