In this summery salad, sweet watermelon is the perfect foil for tangy feta cheese. Jun 1, White balsamic vinegar is best in this refreshing salad as it adds acid without overpowering the sweetness of the watermelon. You can als. Ingredients. 1 small seedless watermelon (or 1/4 of a large one); 1/2 of a red onion, thinly sliced; 16 leaves fresh basil; 1/4 cup (2 ounces) crumbled Feta. Summer Entertaining: Cucumber Basil and Watermelon Salad Photo of Herb Watermelon Feta Salad by Michelle English Gently toss watermelon, onion, basil, cilantro, mint, lime juice, feta cheese, olive oil, balsamic . In this summery salad, sweet watermelon is the perfect foil for tangy feta cheese. Jul 21, If you want your watermelon to feel fancy, in an effortless sort of way, this is it. Salty feta plays off the sweetness, while a minty basil takes its.