Grilling Flank Steak for Fajitas: A Comprehensive Guide

Flank Steak for Fajitas

If you’re a fan of Mexican cuisine, then you must have tried fajitas, the sizzling and flavorful dish that’s perfect for any occasion. While fajitas can be made with various meats, grilling flank steak is one of the most popular choices. However, grilling flank steak can be a bit tricky if you don’t know what you’re doing. In this article, we’ll guide you on how to grill flank steak for fajitas to perfection.

Understanding Flank Steak

Before we dive into the grilling process, it’s essential to understand the cut of meat that we’re dealing with. Flank steak is a long and flat cut of beef that’s taken from the abdominal muscles of the cow. It’s lean and tough, but when cooked correctly, it’s incredibly flavorful.

Preparing the Flank Steak

Preparing the flank steak correctly is crucial to ensure that it’s tender and juicy after grilling. Here’s how you can prepare your flank steak for grilling:

1. Trim the excess fat

Before marinating the flank steak, trim off any excess fat with a sharp knife. This will help the meat cook evenly and prevent flare-ups on the grill.

2. Score the meat

Score the surface of the steak with a sharp knife, making shallow cuts about 1/4 inch deep. This will help the marinade penetrate the meat, resulting in a more flavorful steak.

3. Marinate the steak

Marinating the flank steak is essential to add flavor and tenderize the meat. You can use any marinade you like, but a combination of lime juice, garlic, cumin, and chili powder works great for fajitas. Marinate the steak for at least two hours or overnight for best results.

Grilling the Flank Steak

Now that you’ve prepared your flank steak for grilling let’s move on to the grilling process. Follow these steps for a perfectly grilled flank steak:

1. Preheat the grill

Preheat your grill to high heat, about 450°F.

2. Oil the grill grates

Using a pair of tongs and a paper towel soaked in oil, oil the grill grates to prevent the steak from sticking.

3. Grill the steak

Place the flank steak on the grill and cook for 4-5 minutes per side for medium-rare doneness. Flank steak is best served medium-rare to medium as it can become tough if overcooked.

4. Rest the steak

After grilling, let the steak rest for 5-10 minutes before slicing it against the grain. This will help the juices redistribute and keep the meat moist.

Serving the Fajitas

Now that your flank steak is perfectly grilled let’s move on to serving the fajitas:

1. Warm the tortillas

Warm the tortillas on the grill or in a pan.

2. Slice the steak

Slice the flank steak into thin strips against the grain.

3. Add the toppings

Fill the tortillas with the sliced steak and your favorite toppings like sautéed onions and bell peppers, guacamole, and sour cream.

4. Serve and enjoy!

Serve the fajitas immediately while they’re still warm.

Tips for Perfectly Grilled Flank Steak for Fajitas

Here are some tips to keep in mind while grilling flank steak for fajitas:

  • Don’t overcook the steak; it should be served medium-rare to medium.
  • Let the steak rest before slicing it.
  • Slice the steak against the grain for tender strips.
  • Use a meat thermometer to ensure that the internal temperature of the steak reaches 135°F for medium-rare or 145°F for medium.
  • Don’t overcrowd the grill; leave some space between the steak pieces to ensure even cooking.


Grilling flank steak for fajitas is easy once you know how to prepare and grill it correctly. By following the steps we’ve outlined in this article, you can enjoy perfectly grilled flank steak fajitas in the comfort of your own home. Remember to use high-quality meat and a flavorful marinade, and don’t forget to slice the steak against the grain for tender strips.


  1. Can I use other cuts of meat for fajitas besides flank steak?

Yes, you can use other cuts of meat like skirt steak or sirloin steak for fajitas.

  1. How long should I marinate the flank steak?

You should marinate the flank steak for at least two hours or overnight for best results.

  1. Can I use a gas grill instead of a charcoal grill?

Yes, you can use a gas grill instead of a charcoal grill. Just make sure to preheat it to high heat.

  1. What are some other toppings I can add to my fajitas?

You can add toppings like shredded cheese, diced tomatoes, jalapeños, or chopped cilantro.

  1. Can I grill the vegetables for the fajitas as well?

Yes, you can grill the vegetables like onions and bell peppers alongside the flank steak for added flavor.

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