Ravioli with Apples and Walnuts

1 pound cheese ravioli (fresh or frozen)
2 tablespoons olive oil
½ cup walnuts, roughly chopped
1 crisp apple (such as Braeburn or Gala), cut into matchsticks
½ cup fresh flat-leaf parsley, chopped Kosher salt and black pepper
¼ cup grated Parmesan (1 ounce)

Cook the ravioli according to the package directions.
Meanwhile, heat the oil in a medium skillet over medium heat. Add the walnuts and cook, stirring often, until lightly toasted and fragrant, 4 to 5 minutes.

Add the apple, parsley, ½ teaspoon salt, and ¼ teaspoon pepper and toss to combine. Spoon over the ravioli and sprinkle with the Parmesan.