Preheat oven to 350. Line or grease and flour 1 12-well muffin tin.
In a large bowl, stir together flour, sugar, flax seed meal, egg, salt, nutmeg, oil, milk and the baking powder until a fairly smooth batter forms. Fold in the apples. Divide evenly among 12 wells in a muffin tin. Bake 20 minutes or until a toothpick inserted in the center of the center muffin comes out clean.