This unusual salad was inspired by a dish we tasted at Trattoria Masuelli San Marco in Milan, Italy. Celery brings snappy texture and flavor while almonds add crunch. We especially like the rich nuttiness of Spanish marcona almonds that have been fried and salted, but regular blanched almonds that have been toasted and cooled work well, too. An average-size store-bought rotisserie chicken will yield enough shredded meat for the salad.