Cook the Pasta:
Bring a large pot of salted water to a boil.
Cook pasta according to package directions, until al dente.
Reserve ¼ cup pasta water, then drain and set aside.
Cook the Steak:
Pat steak dry with paper towels and season with salt, pepper, and garlic powder.
Heat olive oil in a skillet over medium-high heat.
Sear steak for 3-4 minutes per side (for medium-rare) or longer for desired doneness.
In the last minute of cooking, add butter, minced garlic, and thyme/rosemary. Spoon butter over the steak.
Remove steak from the pan and let it rest for 5 minutes, then slice thinly.
Make the Sauce And Toss the Pasta:
In the same skillet, melt butter and sauté garlic for 30 seconds.
Pour in heavy cream, Italian seasoning, red pepper flakes, Parmesan cheese, salt, and black pepper. Stir until smooth.
Add the cooked pasta and reserved pasta water, tossing to coat in the sauce.
Assemble And Serve:
Slice the steak and place on top of the pasta.
Garnish with chopped parsley and extra Parmesan cheese.
Serve immediately and enjoy!