Using a large mixing bowl and an electric mixer, combine the cake mix, egg whites, eggnog, oil, espresso powder, cinnamon, and nutmeg. Combine for 1-2 minutes until smooth.
14.25 ounces white or yellow cake mix, 3 large egg whites, 1 cup non-alcoholic eggnog, ½ cup vegetable oil, 1 tablespoon instant espresso powder, 1 teaspoon ground cinnamon, ½ teaspoon ground nutmeg