Keto – Skillet Steak & Mushroom Sauce

This is a one pan dinner, that works for the Keto diet and is totally satisfying for those not doing the diet.

Skillet Steak with Mushroom Sauce

A tender, juicy skillet steak smothered in a mouthwatering mushroom cream sauce that comes together in just 30-minutes. This easy recipe has something for everyone – whether ketogenic, low-carb, gluten-free or none of the above!
Course Dinner
Cuisine American, French
Keyword Keto, Mushroom, Steak
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings 4
Calories 828 kcal


  • 2 pounds Flat Iron or NY Strip Steak porterhouse (2 large pieces or 4 smaller pieces)
  • 1 tablespoon extra virgin olive oil
  • 2 tablespoons butter
  • 1/4 cup shallots finely diced or onion
  • 2 cloves garlic minced
  • 16 oz sliced baby Bella mushrooms crimini or brown
  • 1 teaspoon all-purpose seasoning blend
  • 1 cup chicken broth
  • 1 cup heavy cream
  • salt
  • pepper


  1. Add oil and butter to cast iron or other heavy bottomed skillet and heat over high heat
  2. Sprinkle steak with a few pinches of salt and pepper and add to skillet
  3. Sear on each side until browned and caramelized, about 3-4 minutes per side
  4. Remove steak from skillet and set aside
  5. Add mushrooms, shallots, garlic and seasoning to skillet
  6. Saute for 2-3 minutes until mushrooms start to soften
  7. Add broth and allow to simmer for 5 minutes until it reduces in half
  8. Stir in cream and add steak back to skillet
  9. Allow to simmer until steak is cooked to preferred doneness (approximately 2-4 more minutes)

Recipe Notes

Mushrooms dry when cooking? Add a little more oil to the pan if needed

Too much sauce?  If you won’t use it all, for example, if serving children, reduce the amount of cream. Try 1/2-3/4 cup of cream.

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