Pour in the heavy cream and chicken broth, stirring to combine. Let the mixture simmer for a few minutes until slightly thickened.
Stir in the Parmesan cheese, oregano, thyme, salt, and pepper. Add the cooked pasta and sausage back into the skillet, mixing everything together.
Transfer the pasta mixture to a greased baking dish. Top with shredded mozzarella cheese.
Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and golden brown.
Remove from the oven and let it cool for a few minutes. Garnish with fresh parsley before serving.
For a lighter version, you can substitute the heavy cream with half-and-half or milk. If you prefer a bit of spice, use hot Italian sausage or add a pinch of red pepper flakes to the sauce. For a vegetarian option, omit the sausage and add more mushrooms or some spinach for extra greens. You can also experiment with different types of cheese, such as Gruyere or cheddar, for a unique flavor twist.