Flank Steak Fajitas

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Fajitas are a Tex-Mex quick, delicious, nutritious, and filling dish. The best part about them is adding all your favorite toppings, cheese, sour cream, guacamole, salsa, lettuce, and fresh tomatoes. It's all completely customized to your taste buds.

The twist with these fajitas is they're a low carbohydrate Keto version, using low-carb tortillas replacing your typical corn or flour tortillas. Seared flank steak seasoned with chili powder, smoked paprika, cayenne, cumin, garlic, and onion powder tossed with bell peppers. Flank steak is also known as London Broil. It's a low-cost, all-purpose cut of beef. Take into consideration that flank steak is a very lean cut of beef. To keep it from getting dry, it's recommended to cook flank steak at no more than medium temperature and cut the steak against the grain to keep it tender & juicy. Try these Flank Steak Fajitas now!

If you love steak, you'll love this recipe for Pan Seared Ribeye with Garlic Butter, for your next culinary adventures. 

Author: Jennifer Dodd
Average: 5 (3 votes)
Prep Time
15 mins
Cook Time
20 mins
Total Time
35 mins
4 persons



Preheat the oven to 375 °F.
Combine all the spices and seasoning using a small whisk or fork to stir using a medium bowl. 
Place the flank steak onto a cutting board and pat the steak dry on either side using a paper towel
Sliced the steak into thin strips cutting against the grain to keep the steak tender. 
Add the strips of steak into a bowl and toss the seasoning to coat the steak, set aside. 
Place a large cast iron skillet or heavy bottomed pan onto the stove top, set to medium-high heat. 
Add half the olive oil to the pan, and allow the oil to heat up for 1 minute until starting to smoke. 
Add the steak to the pan spreading the slices out, sear the steak on each side for 1 minute, flipping the steak with a pair of kitchen tongs.
Remove the steak from the pan. Place the steak into a dish or plate lined with a paper towel to drain. 
Return the pan to the heat, add the remainder of the oil and add the peppers to the pan. 
Sauté the peppers for 2 minutes allowing them to soften. 
Add the flank steak back into the pan, and mix the steak with the peppers allowing it to cook for 1 minute. 
Spread out the low-carb tortillas onto a baking sheet, so they get evenly toasted. Place into the oven for 2 minutes. 
Serve everything family-style in separate dishes, and garnish the steak with chopped cilantro and fresh lime juice. Serve alongside all your favorite toppings.
Leftovers are great as well, store them in an airtight container for up to 3 days

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