Greek Watermelon Salad

I first tasted this salad at Greek Restaurant, and I loved its contrasting flavors - tangy and creamy.
The next time I brought watermelon, I decided to make this salad I also added mint because it is also a summer herb and adds a refreshing cooling flavor during  warm summers.
This can be served as an appetizer or as a salad.   

Ingredients  

1  bowl  cubed watermelon ( approximately ½ of a small water melon  or ¼ big one )

1 tablespoon fresh lime juice 

  3 /4 cup  thinly sliced red onions

3/4 cup crumbled feta cheese  

  1/2 cup pitted black olive halves 

 1 cup chopped fresh mint

             2 tablespoons olive oil
      1 teaspoon Balsamic Vinegar
             
       1 teaspoon- black rock salt- sprinkle this just before serving.  

Method

1. Soak onion slices in a small bowl with the lime juice. The acid of the lime will mellow the flavor of the raw onion. Let stand for 10 minutes.
2. In a large bowl, combine the watermelon cubes, feta cheese, black olives, and onions with the lime juice,b balsamic vinegar  and mint. Drizzle olive oil over it all, and toss to blend. Garnish with mint leaves. Refrigerate and serve.