In a large tupperware container or bowl, add chia seeds, yogurt, and milk and mix well until fully combined and there are no clumps of yogurt or chia seeds.
Add lemon juice and lemon zest and mix again.
Add maple syrup, vanilla, and cheesecake pudding mix and mix again.
Cover and refrigerate for at least 2 hours to allow chia seeds to fully thicken. This variation will thicken more quickly than my other chia recipes due to the Greek yogurt.