Flat Iron Steak with Mushroom Sauce

4.9
(35)
32 Reviews
6 Photos

A wonderful beefy flavored and inexpensive company-worthy flat iron steak with a creamy mushroom sauce. Wonderful served over roasted potatoes or a rice pilaf.

Submitted by ALRAYNA
Updated on November 5, 2024
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Prep Time:
20 mins
Cook Time:
35 mins
Total Time:
55 mins
Servings:
4
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Ingredients

Original recipe (1X) yields 4 servings

  • 1 (1 pound) flat iron steak

  • 1 ½ teaspoons kosher salt

  • 1 teaspoon freshly ground black pepper

  • ½ teaspoon garlic powder

  • ½ teaspoon onion powder

  • 1 tablespoon vegetable oil, divided

  • 8 ounces cremini mushrooms

  • ½ cup Burgundy wine

  • 1 cup beef stock

  • 1 tablespoon unsalted butter, softened

  • 1 tablespoon all-purpose flour

  • ½ cup heavy cream

  • 2 tablespoons chopped fresh chives

Directions

  1. Preheat the oven to 325 degrees F (165 degrees C).

  2. Season both sides flat iron steak with salt, black pepper, garlic powder, and onion powder. Heat a heavy, oven-proof skillet over medium-high heat; add 2 teaspoons vegetable oil and heat until oil shimmers. Add steak; sear until well browned, about 3 minutes per side. Remove steak from skillet and reduce heat to medium.

  3. Add remaining 1 teaspoon vegetable oil to skillet. Add mushrooms; cook and stir until wilted and browned, about 10 minutes. Reduce heat to medium-low; add wine to skillet and bring to a boil. Cook until wine is slightly reduced, 3 to 5 minutes; add beef stock and bring to a simmer.

  4. Mash butter and flour into a paste in a small bowl, using a fork; stir into mushroom mixture and simmer until sauce is thickened, about 5 minutes. Return flat iron steak to the skillet.

  5. Cook in the preheated oven until steak is barely pink inside, about 10 minutes. Cut steak into thin slices on the diagonal; place on a platter.

  6. Stir cream into mushroom sauce until heated through, 1 to 2 minutes; pour over steak and garnish with chives.

43 home cooks made it!

Nutrition Facts (per serving)

437 Calories
31g Fat
7g Carbs
28g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 437
% Daily Value *
Total Fat 31g 39%
Saturated Fat 14g 72%
Cholesterol 126mg 42%
Sodium 870mg 38%
Total Carbohydrate 7g 2%
Dietary Fiber 2g 6%
Total Sugars 1g
Protein 28g 56%
Vitamin C 5mg 6%
Calcium 32mg 2%
Iron 1mg 6%
Potassium 112mg 2%

* 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.