1. Prepare the Crust:

1. Season the steaks generously with Cajun seasoning, salt, and pepper. Let them rest at room temperature for 10 minutes.
2. In a large skillet, melt 2 tablespoons of butter over medium-high heat. Add the steaks and cook for about 4 minutes on each side for medium-rare, or until cooked to your liking. Remove steaks and let them rest.
3. In the same skillet, add the remaining butter and minced garlic. Sauté for about 1 minute. Add the heavy cream and bring to a simmer. Stir in Parmesan cheese until melted and the sauce is smooth.
4. Meanwhile, cook the linguine according to package instructions. Drain and toss with the creamy Parmesan sauce.
5. Slice the rested steak and serve over the creamy Parmesan linguine. Garnish with chopped parsley and additional Parmesan cheese if desired.