The sweetness and juicy texture of watermelon is set off with chunks of ripe tomato, sweet onion, and a tangy balsamic dressing in this salad that is great served cold. August 31, 2019 | cookedfromtheheart The sweetness and juicy texture of watermelon is set off with chunks of ripe tomato, sweet onion, and a tangy balsamic dressing in this salad that is great served cold.