Easy Steak Fajitas

Step 1 -Stir the fajita seasoning, the lime zest, the lime juice, the black pepper, 1/4 cup of the oil, and 1/2 teaspoon of the salt together in a small bowl.

Step 2 -Reserve 2 tablespoons of the fajita marinade in a separate bowl.

Step 3 -Place the steak in a large resealable plastic bag and pour the remaining fajita marinade on top.

Step 4 -Seal the bag and marinate the steak for at least 1 hour and up to 4 hours, turning and massaging the meat in the sealed bag on occasion.

Step 5 -Heat the oil in a large cast-iron skillet over high heat.

Step 6 -Add the onion and the bell pepper to the oil and cook, stirring often, until they soften slightly and begin to caramelize, about 6 minutes.

Step 7 -Sprinkle the onion mixture with the remaining salt, stir in the reserved fajita marinade, and cook for 1 minute.

Step 8 -Transfer the onion mixture to a plate and tent it with foil to keep it warm. Wipe the skillet clean.

Step 9 -Heat the oil in the same skillet over high heat.

Step 10 -Transfer the steak from the marinade, allowing any excess to drip off, then add it to the hot oil.

Step 11 -Cook the steak until it reaches at least 145 degrees F internally, about 4-5 minutes per side.

Step 12 -Transfer the steak to a cutting board and tent it with foil, allowing it to rest for 5 minutes.

Step 13 -Thinly slice the steak against the grain and arrange it on a platter.

Step 14 -Place the onion mixture alongside the steak and serve with the warm tortillas.