In a large skillet or saucepan over medium high heat crumble and cook sausage, about 10 minutes. Drain on paper towels , if desired. (I usually do not)

Next add green chiles, both jars of pasta sauce and one cup heavy cream.  Let simmer for about 20 to 30 minutes.  If you are in a real pinch for time you don't have to do this, but letting it simmer a bit adds to the flavor.

Meanwhile, cook spaghetti noodles according to package instructions to al dente. Once done, drain water off noodles in a colander.

Pour cooked spaghetti noodles into sauce and mix until combined.

Top with chopped parsley and parmesan cheese, if desired, and serve.