Preheat oven to 350°F and line two baking sheets with parchment paper or with silpat mats and set aside.
In a medium bowl, mix together oats, flour, baking soda, baking powder, cinnamon, salt and nutmeg if using. Set aside.
In a large mixing bowl with the mixer set on medium speed, beat together oil, applesauce, sugar, eggs and vanilla until fluffy and smooth.
Slowly beat in the dry ingredients to the wet ingredients until combined.
Gently mix in the raisins.
Using a medium cookie scoop, drop 1 Tablespoon worth of dough onto the prepared baking sheets about 2 inches apart. Lightly press each cookie down with a fork.
Bake for 10 minutes, or until golden brown. The cookies will seem a little soft, but do not over bake or they’ll get too crisp. Remove from oven and let cool on sheet for about 5 minutes or until they start to harden up a bit. At this point you can transfer the cookies to a wire rack to cool completely.