Preheat the oven to 350 degrees F. Grease a 12-cup muffin tin or use muffin liners.Combine the flour, oats, baking powder, baking soda, cinnamon and nutmeg in a large mixing bowl.Add the applesauce, flax eggs, non-dairy milk, maple syrup, diced apple and raisins if using. Stir gently until all the flour is incorporated into the batter. Pour the batter into the prepared muffin cups filling them â…” full.Bake for 25 minutes, or until the tops of the muffins are lightly browned and a toothpick inserted into the center of the muffin comes out clean.