Add Greek yogurt, milk, mashed banana, protein powder, pudding mix, and vanilla extract into a bowl
Whisk until smooth and creamy with no lumps
Taste and add honey or maple syrup if additional sweetness is needed
Crush vanilla wafers or graham crackers into small pieces
In serving cups, add a layer of pudding mixture at the bottom
Add a layer of crushed cookies followed by banana slices
Repeat layers until cups are filled
Top with whipped topping and chocolate chips if desired
Refrigerate for at least 30–60 minutes to allow flavors to set
Serve chilled for best texture and taste