Chicken, Red Potato, And Green Bean Salad

Ingredients:1/3 cup coarsely chopped fresh parsley3 tablespoons red wine vinegar1 tablespoon fresh lemon juice1 tablespoon whole-grain Dijon mustard1 tablespoon extravirgin olive oil1/2 teaspoon salt1/4 teaspoon freshly ground black pepper1 garlic clove, minced1 pound small red potatoes1 teaspoon salt1/2 pound diagonally cut green beans2 cups cubed cooked chicken (about 8 ounces)2 tablespoons chopped red onion1 (10-ounce)…