Bring a large pot of salted water to a boil and cook fettuccine noodles until al dente. Check package directions, as cook times vary by brand. Drain pasta, but reserve about 1 cup of cooking water and set aside.
Heat olive oil in a large skillet over medium heat. Season both sides of the steaks with salt and pepper.
Add steaks to skillet and cook 4–5 minutes per side, or until desired doneness is reached. Transfer steaks to a plate and cover with aluminum foil.
In the same skillet, add the butter and garlic and cook for 2–3 minutes.
Then add the cream and ½ cup reserved pasta water.
Add parmesan cheese and bring to a light simmer.
Allow sauce to cook for 5–6 minutes, or until sauce is thickened. Add more pasta water if needed to achieve desired consistency.
Add cooked noodles to pan and toss in alfredo sauce until fully coated.