Begin by bringing a large pot of water to a rolling boil over high heat. Once boiling, generously salt the water and add twisted pasta. Cook according to package instructions until al dente, usually around 8-10 minutes. Drain and set aside.

In a large skillet, heat olive oil over medium-high heat until shimmering. Add sirloin steak cut into bite-sized pieces, ensuring not to overcrowd the pan. Sear for 3-4 minutes until browned. Remove and set aside.

Lower the skillet heat to medium and add butter to the drippings, allowing it to melt. Pour in heavy cream and add Cajun seasoning. Stir well and let simmer for 2-3 minutes until slightly thickened.

Add the cooked pasta to the skillet, tossing to coat in the sauce. Sprinkle in grated Parmesan cheese, tossing until melted. Fold in the seared steak bites until heated through.