In a bowl, whisk together the olive oil, lime juice, soy sauce, Worcestershire sauce, garlic, cumin, chili powder, paprika, red pepper flakes, salt, and pepper.
Place the flank steak in a large resealable plastic bag or shallow dish and pour the marinade over the steak. Seal the bag or cover the dish and refrigerate for at least 30 minutes, or up to 2 hours for more flavor. If you’re in a rush, even 15 minutes will give it a nice boost of flavor.
Prepare the Veggies:
While the steak is marinating, slice the onion and bell peppers into thin strips. Set them aside.
Cook the Steak:
Heat 2 tablespoons of olive oil in a large skillet (preferably cast iron) over medium-high heat. When the oil is hot, remove the steak from the marinade (discard any leftover marinade) and sear the steak for 3–4 minutes per side for medium-rare, or longer depending on your desired doneness. For a more authentic fajita flavor, you want a nice char on the steak.
Once cooked, transfer the steak to a cutting board and let it rest for a few minutes before slicing it thinly against the grain.
Sauté the Veggies:
In the same skillet, add a bit more oil if needed, and toss in the sliced onions and bell peppers. Sauté for about 4–5 minutes until they’re softened and slightly charred. If you like a bit of smokiness, you can let them get a bit more charred at the edges.
Assemble the Fajitas:
Warm your flour tortillas in a dry skillet or microwave.
To serve, lay out the tortillas and fill with a few slices of steak, sautéed onions and peppers, and any toppings you like—sour cream, guacamole, salsa, or shredded cheese.
Serve Hot:
You can serve these sizzling fajitas on a hot cast iron skillet to get that restaurant-style sizzle effect, or just plate them up as is.
Enjoy your Sizzling Steak Fajitas with your favorite sides, like Mexican rice, beans, or a simple salad!
Tips for the Perfect Fajitas:
Rest the Steak: Letting the steak rest before slicing helps keep the juices in and the meat tender.
Marinate Longer: If you can, let the steak marinate longer for more flavor.
Serve Immediately: The sizzling effect is part of the experience, so serve it right away while it’s hot.
Would you like some suggestions on sides or toppings?
