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Grilled Flank Steak Tacos

These Grilled Flank Steak Tacos combine marinated flank steak that is cooked to beefy perfection and served in a grilled taco shell for the perfect lunch or dinner.
Prep Time10 minutes
Cook Time15 minutes
Marinade Time8 hours
Total Time8 hours 25 minutes
Course: Main Dish
Cuisine: American, Barbecue
Keyword: Flank Steak Tacos
Servings: 4 people
Author: Susie Bulloch (heygrillhey.com)


  • 1 2-3 pound flank steak

Flank Steak taco Marinade

  • 2 Tablespoons avocado oil
  • ¼ cup cilantro
  • ¼ cup lime juice approximately 2 limes
  • 2 cloves garlic
  • 2 teaspoons sea salt
  • 2 teaspoons chili powder
  • 1 teaspoon black pepper
  • 1 teaspoon cumin
  • 1 teaspoon Mexican oregano
  • ½ teaspoon cayenne pepper


  • 16 street taco shells flour or corn
  • 1 bunch cilantro
  • ½ cup white onion diced
  • 2 limes cut into wedges
  • avocado slices optional
  • pico de gallo optional


  • Make the marinade. Combine all marinade ingredients in a large blender jar. Cover tightly with the lid and blend until well combined.
  • Marinate the flank steak. Place the flank steak in a glass 9x13 dish and pour the marinade over the steak. Flip the steak a couple of times to ensure it is fully coated in the marinade. Cover the pan with a layer of plastic wrap and top with a plate or pan to press out any excess air and keep the marinade tight against the meat. Alternatively, marinate in a gallon zip top bag, removing any excess air. Refrigerate the steak for at least 8 hours or up to 24 hours.
  • Grill the flank steak. Preheat your grill to high heat (450-500 degrees F). Remove the steak from the marinade and allow any excess liquid to drip away. Carefully lay the steak on the grill grates and cook for 2-3 minutes before flipping. Continue flipping the steak every couple of minutes until an internal thermometer reads 130 degrees F (approximately 12-15 minutes total).
  • Rest and slice the steak. Remove the steak to a cutting board and allow to rest before slicing into thin strips against the grain. While your steak rests, you can grill your tortilla shells for 30-60 seconds to heat through
  • Assemble the tacos. Serve with additional cilantro, fresh chopped white onions, and lime wedges on grilled tortilla shells.


Calories: 247kcal | Carbohydrates: 35g | Protein: 4g | Fat: 11g | Saturated Fat: 3g | Trans Fat: 1g | Cholesterol: 1mg | Sodium: 137mg | Potassium: 210mg | Fiber: 5g | Sugar: 2g | Vitamin A: 629IU | Vitamin C: 3mg | Calcium: 74mg | Iron: 2mg