In a large mixing bowl, carefully combine the rolled oats and almond milk. Stir until the oats are fully immersed in the milk.
Incorporate the grated carrot, chia seeds, maple syrup, and vanilla extract into the mixture. Stir thoroughly to ensure all ingredients are well combined.
Sprinkle in the ground cinnamon, ground nutmeg, and a pinch of sea salt, mixing gently to distribute the spices evenly throughout the oats.
Fold in the raisins and half of the chopped walnuts or pecans, reserving the remaining nuts for garnish. Make sure to gently mix them throughout the oat mixture for an even distribution.
Cover the bowl with a lid or plastic wrap and place it in the refrigerator overnight.
In the morning, give the oat mixture a good stir. If you prefer a creamier texture, stir in a splash of almond milk.
Serve the overnight oats in bowls or jars, topping them with the remaining chopped walnuts or pecans. Optionally, sprinkle a dash of cinnamon and drizzle with maple syrup.
Notes
For an eye-catching presentation, serve in transparent containers and drizzle with maple syrup.