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

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Recipe Summary

prep:
10 mins
cook:
15 mins
additional:
3 hrs 5 mins
total:
3 hrs 30 mins
Servings:
4
Yield:
4 servings
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Ingredients

4
Original recipe yields 4 servings
The ingredient list now reflects the servings specified
Ingredient Checklist

Directions

Instructions Checklist
  • 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.

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  • Remove steak from marinade and discard remaining marinade.

  • 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

538 calories; protein 50g 100% DV; carbohydrates 18.9g 6% DV; fat 29.2g 45% DV; cholesterol 154.8mg 52% DV; sodium 1213.7mg 49% DV. Full Nutrition

Reviews (11)

Read More Reviews

Most helpful positive review

Rating: 4 stars
02/14/2019
Turned out bland. I don't think I let it marinade long enough or didn't use enough ingredients (I'm thinking double the ingredients.) Will definitely try again. Was good, cooked perfectly. Read More
(2)
15 Ratings
  • 5 star values: 9
  • 4 star values: 6
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 0
Rating: 4 stars
02/14/2019
Turned out bland. I don't think I let it marinade long enough or didn't use enough ingredients (I'm thinking double the ingredients.) Will definitely try again. Was good, cooked perfectly. Read More
(2)
Rating: 5 stars
06/28/2017
Delicious!!! I made it exactly as the recipe calls for except for the green onions because I forgot to pick some up when I was shopping. I will definitely make it again next time with the green onions! Read More
(1)
Rating: 4 stars
01/07/2015
This didn t have as much oomph as I had hoped for. I m not sure if it needed some ginger or a longer marinating time. Read More
(1)
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Rating: 5 stars
08/21/2018
Excellent! I can t wait to make it again. And very easy too. Read More
(1)
Rating: 4 stars
01/28/2020
I sliced my steak thinly before adding to the marinade, hoping it would absorb the flavors more quickly. Worked. I stir fried some cabbage, mushrooms, and sugar snaps in the extra marinade and added a few lo mein noodles. Excellent! Read More
(1)
Rating: 5 stars
12/04/2016
Loved this recipe I'll be making it again real soon Read More
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Rating: 4 stars
02/01/2016
Turned out amazing. I recommend after a few min of cooking slice steak into strips and let cool for another 1-2 min Read More
Rating: 5 stars
09/23/2015
This was delicious. I didn't quite have enough mustard and I forgot to buy green onions so I added a pinch of onion powder and a pinch of ginger. Otherwise I made it just like the recipe. Really good! Just don't overlook. Read More
Rating: 5 stars
12/30/2019
One of our favorite recipes! We absolutely love it!! Serve it with an Asian side salad and baked potatoes. This is one of our treat dinners because feeding a family of 6 with teenagers there never seems to be enough steak! I have to double this every time and we still have zero leftovers. Read More