Add the chia seeds, lemon zest, and salt to a jar and mix to combine.
Pour in the milk, greek yogurt, lemon juice, and maple syrup and stir to combine, ensuring no clumps of chia seeds are left at the bottom of the jar.
Place a lid on the jar and refrigerator for at least 6 hours or overnight for best results. Before serving, optionally top with additional yogurt, lemon zest, and honey or maple syrup.
