Food & Cooking Recipes Salad Recipes Arugula Salad with Radishes and Caper Vinaigrette 5.0 (4) Close Credit: Maura Mcevoy Servings: 8 Briny capers infuse this lemony vinaigrette. When tossed with a mix of bitterarugula and radishes, the salad symbolizes one of the traditional elements on the seder plate. Directions Whisk together capers, lemon juice, salt, and pepper. Gradually add olive oil, whisking constantly. Combine arugula, celery leaves, parsley, radishes, and scallions in a large bowl. Pour vinaigrette over salad, and toss to coat. Drizzle with additional oil and lemon juice if desired. Season with salt and pepper.