Boil pasta in salted water until al dente according to package directions. Drain and set aside.
In a large frying pan over medium heat, add sliced sausage in a single layer (cook in batches if necessary). Heat for 2-3 minutes on each side. Remove from pan and set on a plate.
In the same pan (do not drain), add flour and whisk, scraping up the brown bits from the pan, until a paste forms and the mixture starts to brown.
Slowly add in the milk. Whisk continuously until the mixture starts to thicken (about 5 minutes).
Add in the broth, Cajun seasoning, and garlic powder. Bring to a light simmer.
Add in the corn and the parmesan cheese. Stir and simmer for another 5 minutes.
Add the noodles and sausage back into the pan, mixing everything together.
Garnish with fresh parsley and more parmesan cheese.
