Asian Flat Iron Steak


Tender flat iron steak meets trendy Asian bistro flavor! With a side of Asian vegetable mix, it's an easy delicious dinner!

Prep Time:
10 mins
Cook Time:
15 mins
Additional Time:
3 hrs 5 mins
Total Time:
3 hrs 30 mins
4 servings


  • ½ cup reduced-sodium soy sauce

  • ¼ cup rice wine vinegar

  • ¼ cup brown sugar

  • ¼ cup sliced green onions

  • 1 tablespoon minced garlic

  • 1 tablespoon mustard powder

  • 2 pounds flat iron steak

  • 2 tablespoons sesame seeds (Optional)


  1. Whisk soy sauce, vinegar, brown sugar, green onions, garlic, and mustard powder together in a bowl; pour into a resealable plastic bag. Add the steak, coat with the marinade, squeeze out excess air, and seal the bag. Marinate in the refrigerator, 3 to 4 hours.

  2. Remove steak from marinade and discard remaining marinade.

  3. Heat a non-stick skillet over medium-high heat; cook steak just until outside is browned and seared, about 1 minute per side. Continue to cook until desired doneness is reached, about 5 minutes more per side. An instant-read thermometer inserted into the center should read 140 degrees F (60 degrees C). Remove skillet from heat and allow steak to rest before cutting, 3 to 5 minutes. Sprinkle sesame seeds over steak.

Cook's Note:

The nutrition data for this recipe includes the full amount of the marinade ingredients. The actual amount of the marinade consumed will vary.

Nutrition Facts (per serving)

538 Calories
29g Fat
19g Carbs
50g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 538
% Daily Value *
Total Fat 29g 37%
Saturated Fat 10g 52%
Cholesterol 155mg 52%
Sodium 1214mg 53%
Total Carbohydrate 19g 7%
Dietary Fiber 1g 4%
Total Sugars 14g
Protein 50g
Vitamin C 2mg 10%
Calcium 74mg 6%
Iron 2mg 9%
Potassium 123mg 3%

* 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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