Combine Dry Ingredients: In a mason jar or a small bowl, add the rolled oats, chopped pecans, chia seeds, cinnamon, nutmeg, and salt. Stir briefly to combine.
Add Wet Ingredients: Pour in the almond milk, maple syrup, and vanilla extract.
Mix Well: Stir everything together thoroughly with a spoon, ensuring the chia seeds aren't clumped at the bottom and the maple syrup is evenly distributed.
Refrigerate: Cover the jar with a lid or tightly wrap the bowl with plastic wrap. Place in the refrigerator for at least 4 hours, or ideally overnight, to allow the oats to thicken and absorb the flavors.
Serve: In the morning, remove from the fridge and give the oats a good stir.
Top and Enjoy: Top with extra chopped pecans and a drizzle of maple syrup if desired. Enjoy cold!