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Easy Flank Steak Fajitas

  • Prep Time: 25 minutes Marinate
  • Cook Time: 30 - 45 minutes at 400°F
  • Servings: 4
  • Course: Main Dish

Marinated steak strips and flavorful veggies make a delicious fajita filling—perfect for busy weeknight dinners.

Reynolds Kitchens® Tips

Reynolds Kitchens tip

These flavorful fajitas are perfect for a quick and easy weeknight meal! Simply make ahead and cook when you get home. Then, to add the perfect finishing touch for any fajitas or soft taco meals, just wrap and heat the tortillas in foil. It’s a fast way to get that restaurant-style tortilla taste and texture at home!


  • 1 pound beef flank steak, trimmed of fat
  • 1/4 cup lime juice
  • 1 tablespoon vegetable oil
  • 1 tablespoon chili powder
  • 1/2 teaspoon salt
  • 1/4 teaspoon cayenne pepper
  • 2 red, yellow, and/or green sweet peppers, thinly sliced
  • 1 medium onion, thinly sliced
  • 2 cloves garlic, minced
  • 8 (6- to 7-inch) flour tortillas
  • Guacamole, salsa, and/or sour cream (optional)


Step 1

PLACE steak in a large resealable plastic bag. Add lime juice, vegetable oil, chili powder, salt, and cayenne pepper to the steak in bag. Seal bag; turn to coat steak.

Step 2

MARINATE in the refrigerator 30 minutes to 1 hour.

Step 3

PREHEAT oven to 400°F. 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. Center sweet peppers, onion, and garlic on another sheet (12x18 inches) of heavy duty aluminum foil. Repeat steps above to make another foil packet.

Step 4

WRAP tortillas tightly in heavy duty aluminum foil.

Step 5

BAKE meat and vegetable foil packets 30 to 35 minutes or until meat is desired doneness (145°F for medium rare) and vegetables are tender, adding tortillas to the oven for the last 10 minutes of baking or until heated through.

Step 6

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

Step 7

FILL warm tortillas with meat and pepper mixture to serve. If desired, top with guacamole, salsa, and/or sour cream.

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