Prep: Clean grill and preheat to a High Heat (450-550 degrees F).
Season: Sprinkle salt and pepper on both sides of each steak and set aside until the outdoor grill is hot (option to use a steak marinade or swap out the salt and pepper for a steak dry rub).
Grill: Place steaks on grill grates over direct heat and close grill. Let sear for 3-4 minutes. Flip steaks, keeping them over direct heat, and close the lid. Let cook another 3-4 minutes.
Internal Temp: Open the lid and take internal temperature of the steaks by sticking an internal meat thermometer into the side of the steak. If the steak hasn't reached your desired internal temperature (see Notes) then move steak to indirect heat (I usually just turn off the middle burner and move the steaks there) until they do reach your desired temperature.
Filet Mignon: most filets are thicker than 1-inch. You still want to sear them on both sides for 3-4 minutes and then move to indirect heat until they have reached your desired temperature.
Fattier Cuts + Marinades: If cooking a fattier meat, like ribeye, you need to be extra careful of flare-ups (this can also happen with marinated steak, be sure to shake off excess marinade before grilling). Keep a water spray bottle nearby and don't be afraid to spray the flames to keep them tamed or, if that isn't working, move steaks over to indirect heat sooner.