Meal Kit

Onion and Mushroom Smothered Flat Iron Steak

with sweet potato mash and sea salt-roasted green beans

Prep & Cook Time: 30-40 min.

Difficulty Level: Easy

Spice Level: Not Spicy

Cook Within: 6 days

Contains: Milk

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

"You're smothering me!" is not something you want to hear from someone, unless that someone happens to be a juicy flat iron steak. Topping steak with a generous helping of caramelized onions and mushrooms finished with luscious demi-glace is just the kind of stifling we can get behind. Served alongside fresh green beans and mashed roasted sweet potatoes, no one will hold it against you if you can't seem to give this meal any personal space.

In Your Box (serves 2)

  • 10 oz. Sweet Potato
  • 1 Yellow Onion
  • 6 oz. Cremini Mushrooms
  • 6 oz. Green Beans
  • 4 Tbsp. Bonewerks Classic Veal Demi-Glace
  • Info
    0.9 oz. Butter
  • ½ oz. Light Brown Sugar
  • ½ tsp. Coarse Sea Salt
  • 2 Flat Iron Steaks

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
  • Cooking Spray
  • 1 Baking Sheet
  • 1 Medium Pan
  • 1 Mixing Bowl

Before You Cook

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

    Peel and halve onion. Slice halves into thin strips (julienne). Cut mushrooms into 1/4" slices. Trim ends off green beans. Peel sweet potato and dice into 1/2" pieces. Rinse steaks, pat dry, and season with a pinch of salt and pepper.

  2. 2

    Roast Potatoes and Green Beans

    Add diced sweet potato to one side of prepared baking sheet. Toss with 2 tsp. olive oil and season with a pinch of salt and pepper. Roast in oven for 10 minutes. Remove baking sheet from oven and add green beans to other side. Combine green beans with 1 tsp. olive oil, provided sea salt, and a pinch of pepper (be careful, as pan will be hot). Roast 8-10 minutes, or until both potatoes and green beans are fork tender.

  3. 3

    Caramelize Onions and Mushrooms

    While vegetables cook, heat 2 tsp. olive oil in a medium pan over medium heat. Add onions and cook, stirring occasionally, 10-12 minutes, or until browned. Move onions to edges of pan, making a hole in the middle. Add 1 tsp. olive oil and mushrooms into the void. Allow mushrooms to brown in place 2-3 minutes, then stir until tender, about 2 minutes. Add demi-glace and 2 Tbsp. water. Stir until just combined and remove pan from heat. Add half the butter and swirl to combine. Season with a pinch of salt and pepper. Remove to a plate and wipe pan clean.

  4. 4

    Mash Sweet Potatos

    Remove roasted sweet potatoes to a medium mixing bowl and combine with brown sugar and remaining butter. Mash with a potato masher or fork and season to taste with a pinch of salt and pepper, if desired.

  5. 5

    Cook the Steaks

    Heat pan used for mushrooms over medium-high heat with 1 tsp. olive oil. Add steaks to pan and sear 4-5 minutes on first side until well-browned. Flip and cook 4 minutes, or until steaks reach a minimum internal temperature of 145 degrees. Remove steaks and let rest at least 5 minutes.

  6. 6

    Plate the Dish

    Place a serving of sweet potato mash and green beans on a plate. Place steak in front and top (smother, rather) with rich onion-mushroom sauce.

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