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flank steak over roasted asparagus with lemons in white bowl held by two hands

Flank Steak Recipe

This Flank Steak Recipe is perfect for a quick and easy dinner. Flank steak cooked in a cast iron pan gets all that great char and flavor without having to fuss with a grill. The flank steak marinade has a bit of an Asian flair and tastes great with just about anything. This recipe is Whole 30 Paleo compliant, gluten free, dairy free, low carb and Keto.
5 from 2 votes
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Prep Time: 10 minutes
Cook Time: 10 minutes
Additional Time: 2 hours
Total Time: 2 hours 20 minutes
Servings: 4

Ingredients

  • 1-1.5 Lbs Flank Steak
  • 1/4 Cup Avocado Oli or Olive Oil
  • 3 Tablespoons Rice Vinegar
  • 2 Tablespoons Coconut Aminos (or soy sauce if there are no dietary restrictions)
  • 2 Tablespoons Toasted Sesame Oil
  • 1 teaspoon Prepared Horseradish
  • Generous Pinch Sea Salt

Instructions

  • Place flank steak in a gallon ziploc bag.
  • Mix all marinade ingredients then pour into bag with steak, seal bag. Marinate in the refrigerator for at least 2 hours, 3-4 hours for best results.
  • Heat cast iron pan on stove over medium/high heat for 3-4 minutes.
  • Take flank steak out of bag and allow any excess marinade to drip off. Place steak into hot pan and cook each side for approximately 4 minutes.
  • 4 minutes each side will typically make a steak on the rare side (depending on thickness of flank steak). 130º-135º internal temp will be medium rare. Adjust cooking time according to preferences.
  • Remove flank steak from pan and transfer to a cutting board. Season each side with sea salt and allow to rest for 5 minutes before slicing.
  • Slice against the grain and serve.
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