In a small mixing bowl, blend the seasoned salt, Italian seasoning, black pepper, garlic powder, and onion powder until well combined.
Rub the seasoning mixture thoroughly over all surfaces of the steak, ensuring an even coating.
Warm a cast iron skillet over medium heat and add the butter, allowing it to melt completely.
Place the seasoned steak in the hot skillet and sear for approximately 5 to 6 minutes per side, or until the steak reaches your preferred level of doneness.
Transfer the cooked steak to a plate and let it rest for 10 minutes before serving with your chosen accompaniments.
Notes
Nutritional estimates are based on an average serving size of 4 to 6 ounces of steak and may vary depending on exact portions and ingredients used.