In a 8-12 oz. mason jar or plastic container (with lid) combine the oats, almond milk, cinnamon, maple syrup, chia seeds, and optional protein powder. Seal the lid well and shake to combine.
NOTE: If adding protein powder to your overnight oats you will need to add about another 1/4 cup (2-3 oz.) liquid for mixing.
Repeat step one for up to four jars to have for the week. (you could do more for the whole week, but I find after sitting for four days the texture is not as great. I recommend making 2 times per week)
Leave jar(s) in the fridge overnight (or at least 2 hours) and in the morning top with chopped nuts, fruit, or nut butter and enjoy!!