Easy Flank Steak Fajitas


This flank steak fajitas recipe is made with marinated steak strips and flavorful veggies for a delicious fajita filling — perfect for busy weeknight dinners.

Prep Time:
25 mins
Cook Time:
30 mins
Additional Time:
30 mins
Total Time:
1 hrs 25 mins


  • 1 pound beef flank steak, trimmed of fat

  • ¼ cup lime juice

  • 1 tablespoon vegetable oil

  • 1 tablespoon chili powder

  • ½ teaspoon salt

  • ¼ teaspoon cayenne pepper

  • Reynolds Wrap® Heavy Duty Aluminum Foil

  • 2 red, yellow or green sweet peppers (or combination), thinly sliced

  • 1 medium onion, thinly sliced

  • 2 cloves garlic, minced

  • 8 (6- to 7-inch) flour tortillas

  • tablespoon Guacamole, salsa, and/or sour cream


  1. Place steak in a large resealable plastic bag. Add lime juice, vegetable oil, chili powder, salt, and cayenne pepper to the bag. Seal the bag and turn to coat. Marinate in the refrigerator, 30 to 60 minutes.

  2. Preheat the oven to 400 degrees F (200 degrees C).

  3. Drain meat; discard marinade. Center meat on a sheet (12x18-inches) of Reynolds Wrap heavy-duty aluminum foil. Bring up foil sides. Double fold top and ends to seal packet, leaving room for heat circulation inside.

  4. Center sweet peppers, onion, and garlic on another sheet (12x18-inches) of heavy-duty aluminum foil. Bring up foil sides and repeat steps to seal packet.

  5. Wrap tortillas tightly in heavy-duty aluminum foil.

  6. Bake meat and vegetable foil packets in the preheated oven until meat reaches desired doneness (145 degrees F (63 degrees C) for medium-rare), and vegetables are tender, 30 to 35 minutes. Add tortillas to the oven for the last 10 minutes of baking or until heated through.

  7. Open packets carefully by cutting along top fold with a sharp knife, allowing steam to escape; then open top of foil packet. Thinly slice meat.

  8. Fill warm tortillas with meat and vegetables. If desired, top with guacamole, salsa, and sour cream.

Nutrition Facts (per serving)

404 Calories
17g Fat
42g Carbs
20g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 404
% Daily Value *
Total Fat 17g 22%
Saturated Fat 5g 27%
Cholesterol 36mg 12%
Sodium 757mg 33%
Total Carbohydrate 42g 15%
Dietary Fiber 5g 16%
Total Sugars 5g
Protein 20g
Vitamin C 85mg 423%
Calcium 107mg 8%
Iron 4mg 24%
Potassium 502mg 11%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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