Bring a large pot of salted water to a rolling boil. Add pasta and cook until al dente, about 8-10 minutes. Reserve ½ cup of pasta water, then drain.

Season the steak with salt and pepper. Heat olive oil in a skillet over medium-high heat. Sear steak for about 4 minutes on each side until desired doneness. Remove and let rest.

In the same skillet, lower heat and add minced garlic, sautéing for 30 seconds. Pour in heavy cream and bring to a simmer, stirring occasionally until it thickens.

Stir in Parmesan cheese until smooth. Adjust thickness with reserved pasta water as needed.

Add cooked pasta and sliced steak to the skillet, tossing to coat evenly. Cook for an additional 2 minutes.

Transfer to plates, drizzling with remaining sauce and garnishing with fresh herbs if desired.