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Filet Mignon Cast Iron
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5 from 3 votes

Filet Mignon in Mushroom Sauce

This Filet Mignon in Mushroom Sauce is easy to prepare in one skillet without any special equipment. Ready to eat in only 30 minutes, this impressive French meal is a must at dinner parties, special occasions, or date night!
Prep Time2 minutes
Cook Time24 minutes
resting time5 minutes
Total Time26 minutes
Course: Dinner
Cuisine: American
Keyword: Filet Mignon, Meat, Steak
Servings: 4 people
Author: Silvia Dunnirvine

Ingredients

  • 4 pieces filet mignon
  • 2 cups baby bella mushrooms sliced
  • 1 tbsp olive oil
  • 2 tbsp butter unsalted
  • 2 cloves garlic, whole
  • 1 pinch sea salt flakes and fresh ground pepper to taste
  • fresh thyme

Instructions

  • Pre-heat oven to 425F degrees.
  • Heat oil and butter in cast iron. Add in mushroom slices, fresh thyme and garlic cloves. Stir a few times. Cook until golden (about 10-12 mins)
  • Meanwhile season filet mignon with sea salt flakes and fresh ground black pepper to taste.
  • When mushrooms are done remove from cast iron and reserve.
  • Add filet mignon to the cast iron and cook for 3 minutes on each side.
  • Then transfer to the oven and cook for 6 minutes.
  • Remove from oven and cover with foil for 5 minutes. After this resting time add mushroom in to the cast iron and serve.  

Notes

  • If you prefer a thicker mushroom sauce, stir 2 to 3 tablespoons of heavy cream and a small amount of cornstarch (or flour) into the sauce.
  • A splash of red wine brings refined flavor to the dish. 
  • Adding meat directly from the fridge to a hot pan is a great way to ruin an expensive cut of steak. This is why you MUST let the steaks come down to room temperature first.
 

Nutrition

Calories: 48kcal | Carbohydrates: 2g | Protein: 1g | Fat: 4g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Cholesterol: 2mg | Sodium: 21mg | Potassium: 180mg | Fiber: 1g | Sugar: 1g | Vitamin A: 13IU | Vitamin C: 1mg | Calcium: 18mg | Iron: 1mg