Mix the ginger, lemon juice and sugar together and pour them above the pineapple.
Cover the pineapples and marinate them for about 2 hours.
Add the remaining sugar with mint leaves in a food processor.
Drain the marinated pineapples and keep the marinate aside.
Preheat the grill and grill the pineapple 2 minutes each side.
Stir using a spatula 3 tblespoons of the marinade into the Greek yogurt and sweeten with extra sugar if desired.
Sprinkle grilled pineapple with mint sugar and serve with yogurt on a serving platter.
Notes
Pineapple is a great source of antioxidants and fibers. It is loaded with nutrients that are essential for a healthy body like vitamin C that is essential for good immunity and vitamin B that is needed for DNA and nervous system.