Place the mango, passionfruit and 300ml of the Greek yogurt and turmeric powder into a blender and blend until smooth and creamy.
Divide the mixture into the ice pop moulds, filling only 3/4 ways up.
Using the remaining Greek yogurt, stir vigorously until it becomes a little more pourable. Top up the ice pop moulds and use the back of the spoon to smooth out the ends.
Finely chop the mint leaves, then sprinkle over the ends. Use the spoon again to push it into the mixture, then add the pop sticks and freeze for about 2-3 hours.