Remove steaks from refrigerator 60 minutes before cooking to bring to room temperature. This helps the steaks cook more evenly and creates juicer results.
Pat the steaks dry and season all sides with the salt and pepper, pressing it into the steaks so the salt and pepper sticks; set aside. It is best to season the steaks as soon as you remove them from the refrigerator.
Place bacon strips in a baking tray. Bake the bacon for 6-10 minutes until the strips are beginning to turn golden but are still pliable.
Using two bacon strips per steak, wrap the steak completely with the bacon. Here you can help yourself with some toothpicks.
Heat oil in a cast iron skillet until smoking, then add the steaks. Sear the filets for 2 minutes, flip, and then add the garlic, butter, and rosemary. Adding these ingredients after flipping prevents them from burning. Cook an additional 2 more minutes, tilting the skillet as needed and basting the steaks with the melted butter.
Transfer the skillet to the oven and cook to your liking, then transfer the steaks to a cutting board to rest for 2-5 minutes. Serve warm and juicy with your favorite side dish.