Halve the melon, remove the seeds with a small spoon. Cut out balls from the flesh with a small ball cutter. Cut the cheese into thin slices. Roast pine nuts in a pan without fat until golden brown.
Sort the spinach, wash and drain. Mix the prepared ingredients carefully. Mix vinegar, salt and pepper. Whip oil into it. Marinate salad with it. Arrange on portion plates. Add a dollop of crème fraîche to each plate.
Serve sprinkled with pine nuts.