A rustic Pear Walnut Crisp made in a cast-iron skillet is quite the show stopper. Serve this easy pear crisp with a scoop of vanilla ice cream on top and be prepare to be amazed at the delightful taste. We can get pears pretty much any time of year, but there is something so comforting about indulging in a warm pear crisp during the colder months. This recipe is so easy and it's the perfect way to spend a chilly evening.