Sauté the Sausage: In a large skillet, heat the butter (or sausage render fat) over medium heat. Add the sliced sausage and sauté until browned and cooked through.
Add the Cabbage: Once the sausage is ready, stir in the sliced cabbage. Cook for about 5-7 minutes until the cabbage is tender but still has a bit of crunch.
Prepare the Sauce: Lower the heat, then pour in the heavy whipping cream. Stir to combine. Add the cream cheese and grated parmesan cheese, mixing until everything is well incorporated and creamy.
Combine Ingredients: Gently fold the cooked sausage back into the skillet with the sauce and cabbage. Allow it to cook for another 2-3 minutes to meld the flavors together.
Serving: Remove from heat and transfer to a serving dish. Top with additional parmesan cheese if desired and serve warm.