Watermelon salad

3/4 cup halved, thinly sliced red onion
1 tablespoon fresh lime juice
1 1/2 quarts seeded, cubed watermelon
3/4 cup crumbled feta cheese
1/2 cup pitted black olive halves
1 cup chopped fresh mint
2 tablespoons olive oil

DIRECTIONS Place the 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. In a large bowl, combine the watermelon cubes, feta cheese, black olives, onions with the lime juice, and mint. Drizzle olive oil over it all, and toss to blend