Bring a large pot of salted water to a boil and cook fettuccine until al dente.

Rub steaks thoroughly with Cajun seasoning on all sides.

Heat olive oil in a cast-iron skillet over high heat until shimmering.

Sear steaks for 4-5 minutes per side or until desired internal temperature is reached.

Transfer steaks to a cutting board and let rest for 5-7 minutes.

In a large saucepan, melt butter over medium heat and sauté minced garlic for 60 seconds.

Whisk in heavy cream and simmer for 4 minutes until reduced slightly.

Stir in Parmesan cheese until the sauce is smooth and thick.

Toss the cooked pasta with the cream sauce until evenly coated.

Slice steak against the grain and serve atop the pasta garnished with parsley.