Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a large bowl, combine the rolled oats, whole wheat flour, baking soda, cinnamon, nutmeg, and salt. Mix well and set aside.
In another bowl, whisk together the melted coconut oil, brown sugar, and honey (or maple syrup) until smooth.
Add the egg and vanilla extract to the wet ingredients. Whisk until well combined.
Gradually add the dry ingredient mixture to the wet ingredients, stirring until just combined.
Fold in the grated carrots, raisins, and chopped nuts (if using) until evenly distributed throughout the dough.
Using a tablespoon, scoop rounded dollops of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Gently flatten each cookie slightly with the back of the spoon.
Bake in the preheated oven for 12-15 minutes, or until the edges are lightly golden.
Remove from the oven and let the cookies cool on the sheet for 5 minutes before transferring them to a wire rack to cool completely.
Notes
Serve the cookies on a colorful platter; consider dusting them lightly with powdered sugar and garnishing with a few carrot curls for an extra touch of visual appeal.