Bring a large pot of water to a boil to cook the lobster ravioli according to package directions. Once the water is boiling, add ½ tablespoon of salt and the ravioli. Once the ravioli is finished cooking, reserve ½ cup of pasta water. Meanwhile, make the lemon cream sauce.
Heat the butter in a skillet over medium heat until melted. Add the onion and cook until softened, about 3-4 minutes. Add the garlic and cook another minute.
Add in the white wine and simmer until reduced by about half, about 1-2 minutes. Add the heavy cream, salt, pepper, nutmeg, and thyme. Simmer about 2-3 minutes until slightly thickened.
Mix in the lemon juice, then the parmesan cheese and stir until melted. If needed, thin out the sauce with a little pasta water.
Serve the lemon cream sauce over the ravioli and garnish with fresh parsley, lemon zest and cracked black pepper.