Creating Carrot Cake Overnight Oats is simple if you follow these steps:

1. Combine Dry Ingredients: In a mixing bowl, add the rolled oats, ground cinnamon, nutmeg, and a pinch of salt. Stir until evenly mixed.
2. Add Wet Ingredients: Pour in the milk and maple syrup (or honey). Mix until well combined.
3. Incorporate Carrots and Yogurt: Fold in the grated carrots and Greek yogurt, ensuring everything is evenly distributed.
4. Add Nuts and Raisins: Stir in the chopped walnuts and raisins (if using) for added texture and flavor.
5. Transfer to Jars: Divide the mixture evenly into jars or containers with lids.
6. Refrigerate: Seal the jars and place them in the refrigerator. Allow them to chill for at least 4 hours or overnight.
7. Serve: When ready to eat, give the oats a good stir and top with fresh fruit or additional nuts if desired.

These straightforward steps ensure that you can whip up this amazing breakfast without any fuss.