Mix all seasoning ingredients together. Store in an airtight container. It will be good for 6 months.
Steak
Bring the steak to room temperature and preheat the grill. Meats should sit outside of the fridge for at least 20 minutes before cooking.
Pat the steak dry, season with blackened seasoning on each side, and then place the steaks on the hot part of the grill. Let the steaks sear until they release without sticking. When the steak lifts easily from the grill, flip the steaks. Cook for a couple of minutes.
Insert the thermometer lengthwise for the best reading. A temperature of 130 to 145°F is the range between medium-rare and medium. For a well-done steak, move it to the cooler part of the grill and let it cook longer. Remember, the steak will continue to cook after you remove it from the grill.
Let the steaks rest for 5 to 10 minutes so the juices can settle then slice.
Salad
Place lettuce in bowl(s). Top with slices of steak, cheese, and dressing. Serve.