Remove steaks from the refrigerator and let them come to room temperature for about 30 minutes. Season both sides with salt and pepper.
Preheat the oven to 400 degrees
Heat a cast-iron or oven-safe skillet on high heat add olive oil and butter, once butter is melted and done foaming add steaks. Cook for 2 minutes then flip and cook another 2 minutes, this gives the Filets a nice brown sear. Place pan in the oven and cook for 7-8 minutes or until desired doneness. Using a meat thermometer you can check the temp. Rare - 120-125F, medium rare - 130-135F, medium - 140-145F, medium well - 150-155F and well done - 160-165F.
In a small bowl add butter, herbs, and garlic and mix until combined. Place mixed butter on a piece of plastic wrap roll and twist the ends. Store in refrigerator until ready to use.
Remove the skillet from the oven and add a couple of slices of garlic herb butter on top of the steaks and let rest for 5 minutes. Serve garnished with fresh parsley and pan juices.
