Preheat the oven to 350˚F. Grease a 8x4 loaf pan and set it aside.
In a mixing bowl whisk flour, baking soda, cinnamon, nutmeg, and salt together. Set aside.
In a large mixing bowl, combine oil, sugars, eggs, vanilla and mix well.
Add the flour mixture to the oil mixture and stir a few strokes. Fold in the carrots, 1/2 cup rolled oats, walnuts and dates (if using) just until everything is combined.
Pour the batter into the prepared loaf pan and sprinkle 1 tablespoon of rolled oats on top. Bake it in the preheated oven for 1 hr or until a tester comes out clean.