2 pounds top sirloin steak, cut into thin strips
salt and pepper to taste
1/4 cup vegetable oil
18 (6 inch) corn tortillas
1 medium onion, diced
4 fresh jalapeno peppers, seeded and chopped
4 limes, cut into wedges
1 bunch fresh cilantro, chopped
Heat a large skillet over medium-high heat. Fry the steak strips, stirring constantly, until browned on the outside and cooked through, but not too firm, about 5 minutes. Season with salt and pepper. Remove to a plate and keep warm.
Heat the oil in the skillet, and quickly fry each tortilla on both sides, until lightly browned and flexible. Set aside, and keep warm.
Place tortillas on a plate, and top with steak strips, onion, jalapeno, and cilantro to taste. Squeeze lime juice over. Wrap and eat.