Bring a large pot of water to boil and give it a couple pinches of salt. Add the pasta and cook according to package instructions until al dente. Drain (but save a little of the pasta water in case you need it), and toss with 2 teaspoons of olive oil.
In a large skillet, heat the butter. Then whisk in the cream and nutmeg. Bring to a simmer and let simmer for 2 minutes. Whisk in the Parmesan cheese until well combined. Then stir in the chicken and the ravioli. Carefully toss to coat. Season with salt and freshly ground black pepper.
Serve in bowls garnished with parsley.
Notes
Freshly grated Parmesan melts best.
Add a little of the pasta water if the sauce gets too thick.