Heat a black iron skillet until very hot; add some Kosher salt. Add the flank steak and saute, without stirring for 2 to 3 minutes. Turn over and pan broil for another 4 minutes or until rare.
Cut the steak, on the bias, into very thin strips, across the grain and toss, while still warm with some salsa and fresh lime juice; season with salt
Make a wreath of the greens on a plate, mound the salsa steak in the center and garnish with chopped red pepper and cilantro, if you wish.