Cut the melon halves into 4 slices each. Remove seeds with a spoon. Cut the flesh from the skin, cut into pieces about 2 cm thick. Arrange in staggered portions on the skin
Coarsely chop the pistachio kernels. Stir yoghurt until smooth and season with lemon juice. Spread over the melon boats. Drizzle with honey. Sprinkle with chopped pistachios