In a small bowl, mix chopped fruit, corn starch, and sweetener
Place water-tight/air-tight seal on the container and shake (you want to break up the fruit, so the juices come out)
Let rest in the fridge for 4 hours, shaking it every hour or so
In a cup, add a spoonful of greek yogurt, top with a spoonful of the fruit mixture, and a sprinkle of granola
Continue layering until all ingredients are gone, or until the cup is full