Transfer the yogurt, milk, pure maple syrup, vanilla extract, cinnamon, and sea salt to a large mixing bowl and whisk everything together until the wet ingredients are combined and the lumps of yogurt have dissolved.
Add in the oats, protein powder, and chia seeds (dry ingredients) and mix well to combine.
Cover the mixing bowl with plastic wrap and refrigerate overnight (or for at least 6 hours). If you’re able to give the oats an occasional stir, this will help the liquid become absorbed evenly and avoid any clumping on the part of the chia seeds.
In the morning, give the oats a good stir and divide the oatmeal into 4 to 6 separate jars or individual containers and seal. I find breaking the batch into four servings makes the perfect size serving. Bring one with you on the go, along with any toppings you desire! You can also mix ingredients into the oats to create any flavors you’d like.
I recommend enjoying the oats with fresh fruit, nuts, seeds, nut butter (such as peanut butter or almond butter), and a drizzle of honey or pure maple syrup. Fresh berries, banana slices, chocolate chips, and a spoonful of peanut butter is a great combination.