Cast Iron skillet with fajitas next to lime, avocado and sour cream

Grilled Flank Steak Fajitas

Grilled Flank Steak Fajitas

Category Dinner Beef Grill Cinco de Mayo Lunch Quick and Easy Healthy
Servings 2
Prep Time 60 minutes
Cook Time 30 minutes

This fajita recipe is the perfect addition to your National Gluten Free Day menu. It requires just a few ingredients, including our Pit Boss Sweet Heat Rub, and simple preparation. The easy beef flank recipe is also good to keep in your weeknight rotation to help stay on track with your resolutions for the new year, whether your goal is to order less takeout or eat healthier. Grab some corn tortillas and load up on your favorite toppings for a dish the whole family will enjoy.

Pit Boss Kitchen
Cast Iron skillet with fajitas next to lime, avocado and sour cream


  • 1 Green Bell Pepper, Sliced
  • 1 Onion, Diced
  • 1 Red Bell Peppers, Sliced
  • 6 Tortilla, Flour
  • 3 tbsp Olive Oil
  • 1 -16 Oz Steak, Flank
  • 1 Yellow Bell Pepper, Sliced

Special Tools

  • Bowl


  1. Rub flank steak with 1 Tbsp olive oil and Sweet Heat Rub. Cover and marinate in the refrigerator for at least 1 hour.
  1. Lightly brush peppers and onion with olive oil.
  1. Light your Pit Boss to 400°F. Place pepper and onion on grill and cook 5 minutes per side. Watch carefully to ensure the peppers and onion do not burn.
  1. Remove peppers and onion from grill and toss lightly with remaining olive oil in a medium sized bowl. Transfer peppers and onions to a cutting board and slice into strips. Set aside.
  1. Place flank steak directly on grill. Cook until medium rare (an internal temperature of 165°F).
  1. Remove flank steak from the grill and transfer to cutting board. Let meat rest for 5 minutes, then slice against the grain into strips.
  1. Place flank steak, peppers, and onions in a platter and serve immediately with warm tortillas, salsa, guacamole, sour cream, shredded cheese, thinly sliced iceberg lettuce, or your favorite fajita toppings.


Recipe Note

This recipe can be cooked on any of our Pit Boss Grills wood pellet smokers, our vertical pellet smokers, or any of our barbecue grills using the A-Maze-N smoker accessory wood pellet burners.