Light a grill or preheat the broiler. Season the steaks with salt and pepper and grill or broil over moderately high heat for about 5 minutes per side, or until nicely browned and medium-rare. Let rest for 10 minutes. Slice the steaks 1/4 inch thick. Stack the slices and cut them lengthwise into 1/4-inch-thick strips. In a very large bowl, combine the steak, cabbage, mint and cilantro. Toss with the dressing and sprinkle with the bean sprouts, peanuts and fried shallots.