Heat up a non stick pan to high heat. In the meantime dredge the steak in the Cajun seasoning and allow the butter to sit out in a bowl at room temp to slightly soften.
Add a little oil to the pan followed by the steaks and cook for 2-3 min on each side.
Add the creole seasoning, garlic and parsley to the butter and mix well.
In a small sauce pan melt the butter and drizzle over the steaks after plating the steak with your favorite vegetables.