In a large bowl combine the watermelon, drained pickled onion, pomegranate seeds, cucumber, cheese, olives, mint, orange juice and olive oil. Serve on a large platter and season to taste.
If you can't get hold of Cashel blue cheese, use Roquefort, gorgonzola or even dolcelatte. You can make this with slices of apple if you prefer, or make a much heartier salad altogether by using ...