Meal Kit

Teriyaki- and Sriracha-Marinated Flat-Iron Steak

With Wasabi Whipped Potatoes and Roasted Shiitake Mushrooms

Prep & Cook Time: 30-40 min.

Difficulty Level: Intermediate

Spice Level: Medium

Cook Within: 5 days

Contains: Milk, Wheat, Soy

All ingredients are individually packaged, but our central facility is not certified allergen-free. Furthermore, ingredient contents may vary. Please check ingredient packaging for allergens and nutrition facts. If you have serious allergies, please use your best judgment or consult a health professional to decide if our meals are safe for you!
A note about serious food allergies

A dish as beautiful as it is delicious, this simple flat-iron steak boasts umami-laden Asian flavors of teriyaki and Sriracha. It practically floats atop fluffy wasabi whipped potatoes crowned with rich roasted shiitake mushrooms – a dinner fit for royalty. Pair with a quality red wine or sake for an unforgettably luxe meal.

In Your Box (serves 2)

  • 2 Russet Potatoes
  • Info
    4 fl. oz. Heavy Whipping Cream
  • 3½ oz. Shiitake Mushrooms
  • Info
    1⅘ oz. Butter
  • 1 Green Onions
  • 2 Tbsp. Wasabi Powder
  • ⅓ fl. oz. Sriracha
  • 2 Flat Iron Steaks
  • Info
    1½ fl. oz. Teriyaki Sauce
Contains: Sulfites
Food intolerance information

Due to our just-in-time sourcing model, we may have to send you a substitute ingredient. Not to worry! We make sure every ingredient sent to you meets our high quality standards. We’ll keep you informed should a switch occur, so please check the ingredient labels in your meal bag.

  • Nutrition (per serving)

  • Calories
  • Carbohydrates
  • Net Carbs
  • Fat
  • Protein
  • Sodium

Recipe Steps

You Will Need

  • Olive Oil
  • Salt
  • Pepper
  • 1 Baking Sheet
  • 1 Colander
  • 1 Medium Pot
  • 3 Mixing Bowls
  • 1 Medium Pan

Cooking Guidelines

To ensure food safety, the FDA recommends the following as minimum internal cooking temperatures:

  • Steak and Pork 145° F (rest cooked meat, 3 minutes) |
  • Seafood 145° F |
  • Chicken 165° F |
  • Ground Beef 160° F |
  • Ground Turkey 165° F |
  • Ground Pork 160° F
  1. 1

    Prepare the Ingredients

    • Preheat the oven to 375 degrees and prepare a baking sheet with foil.

    • Rinse all produce

    • Thinly slice the green onion at an angle (called a bias cut).

    • Cut the stems from the shiitake mushrooms.

    • Peel the potatoes and dice into 2-inch pieces. Place potatoes in a pot and fill with enough cold water to cover, plus a dash of salt. Bring to a boil and cook until potatoes are soft and fork tender, about 20 minutes.

    • Rinse the steaks and pat dry.

  2. 2

    Marinate the Steak

    • While potatoes are cooking, place Teriyaki and Sriracha marinade in a shallow dish or high sided plate.

    • Add steaks, and allow to marinate for 15 minutes, turning occasionally, or until you are ready to cook them.

  3. 3

    Cook the Steak

    • Remove the steaks from the marinade and pat dry with a paper towel.

    • Lightly pepper each side of the steaks.

    • Heat 1 tsp. olive oil in a sauté pan over medium-high heat.

    • When the pan is hot, cook steaks for 4-8 minutes on each side, or to your liking.

    • Remove from pan and keep warm and let rest while you roast the mushrooms.

  4. 4

    Roast the Mushrooms

    • Place the mushrooms in a mixing bowl with 2 tsp. of olive oil.

    • Coat the mushrooms with oil and a dash of salt and pepper to taste.

    • Arrange coated mushrooms on a baking sheet and roast in the oven for 6-7 minutes, or until caramelized and golden brown.

    • They cook quickly, so watch closely.

  5. 5

    Make the Wasabi-Whipped Potatoes

    • Strain the cooked potatoes in a colander and return to pot. Add butter and cream and mash together with a potato masher or fork.

    • In a bowl, whisk together wasabi powder and 2 Tbsp. water to form wasabi paste. Add to potatoes, a little at a time, tasting for desired heat. Add salt and pepper to taste. Cover with a lid to keep warm until ready to serve.

  6. 6

    Plate the Dish

    • Place a dollop of wasabi whipped potatoes in the middle of the plate.

    • Top the potatoes with the steak.

    • Arrange roasted shitake mushrooms on top of the flat-iron steak.

    • Garnish with sliced green onions.

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