Assemble your ingredients together before you begin.
In a large bowl, add and whisk all the marinade ingredients.
Add the flank steak into a Ziploc and transfer the marinade from the bowl to Ziploc bag. Marinate for 8 hours.
In another bowl, whisk all the sauce ingredients. Set aside once done.
Heat a large pan over high heat. Add the marinated steaks and cook until desired doneness. Remove from heat and set aside for 10 minutes. Slice the steaks against grain.
Heat the same pan and place one tortilla, sprinkle some cheddar cheese. Cover the tortilla with another tortilla. Remove from heat and place on a plate.
Top the tortilla with steaks, guacamole, Pico de Gallo, cotija cheese, vampiros sauce, and coriander leaves. Serve immediately.