In a mason jar or medium bowl, combine the rolled oats, milk, Greek yogurt, maple syrup, chia seeds, cinnamon, vanilla extract, and salt. Stir until well mixed and no dry spots remain.

Cover the jar or bowl and refrigerate for at least 4 hours or overnight to let the oats thicken.

In a small bowl, whisk together the softened cream cheese and powdered sugar until smooth.

Add the milk, one teaspoon at a time, whisking until the mixture is smooth and pourable.

Stir the chilled oats and transfer to a serving jar if needed. Swirl the cream cheese mixture on top.

Sprinkle with extra cinnamon if desired and enjoy cold straight from the fridge.