Preheat your oven to 350°F (175°C). Prepare a 9x13 inch baking dish by greasing it lightly with cooking spray or a minimal coating of oil to prevent sticking.
In a large mixing bowl, combine the rolled oats, almond milk, maple syrup (or honey), and applesauce. Add the chopped apples, ground cinnamon, ground nutmeg, pure vanilla extract, and salt. Stir the mixture thoroughly until all ingredients are well blended.
If you wish, fold in the chopped walnuts or pecans along with the raisins or dried cranberries, making sure they are evenly distributed throughout the mixture for maximum flavor and texture.
Transfer the oatmeal mixture into the prepared baking dish, spreading it evenly across the surface.
For an extra touch of flavor and presentation, you may choose to top the mixture with additional chopped apples and a light dusting of cinnamon before baking.
Place the dish in the preheated oven and bake for 30-35 minutes. The bake is ready when the top is golden and feels firm to the touch.
Once baked, take the dish out of the oven and let it cool for a few minutes. Then, cut into squares or servings for easy enjoyment.
Serve warm, and for a delightful finishing touch, drizzle a little extra maple syrup over each serving if desired. Relish in your delicious and hearty breakfast!
Notes
Feel free to customize with your favorite nuts and dried fruits.