If you have any, saute some mushrooms and throw on top of the steak after plating. Serve with something slightly sweet, like a good green salad and some raspberry vinagarette. The steak is savory. Ballance it with the salad, or a 3-bean salad that gives both sweet & sour. Good crusty bread would be good with the steak as well. My beverage of choice, especially with steak is milk. I find the salty, slightly metalic flavor of beef brings out the full milk flavor, and vice/versa. Of course you can serve whatever beverage you like.
Seeeeeeya; Goodweed of the North