A distinguished culinary classic crafted with authentic techniques and finest ingredients, offering rich depth of flavour and elegant presentation.
Whisk lime juice, olive oil, minced garlic, cumin, paprika, oregano, chili powder, and salt in a bowl; coat the steak thoroughly and marinate refrigerated for at least 4 hours.
Heat a cast iron skillet or outdoor grill to maximum heat; sear the steak for 3-4 minutes per side until deeply charred on the outside and medium-rare inside (54°C).
Remove steak to a cutting board and tent loosely with foil to rest for 10 minutes.
Add sliced bell peppers and onions to the smoking hot skillet; cook over high heat for 6-8 minutes until tender-crisp with blistered charred edges.
Slice the rested flank steak thinly against the grain at a 45-degree angle.
Arrange sliced steak over the sizzling peppers and onions; serve immediately with warm soft flour tortillas, fresh guacamole, sour cream, and salsa.