Add half the olive oil and butter in a cast iron skillet, then add in the steaks, salt and pepper.
Sear for 2-3 minutes on each side, then place the skillet in the oven.
Cook for 5-8 minutes or until they reach your desired temperature when checked with a meat thermometer (see temperature/levels of doneness chart in the post). Mine took 7 minutes for a perfect medium rare.
Place the skillet back on the stovetop and remove the steaks. Set them aside and tent with aluminum foil.
Add in the remaining butter and olive oil, along with the mushrooms.
Sauté for a few minutes, until they have some good color, then remove them and add in the shallots.
Sauté the shallots for a few minutes, then add in garlic for about 15 seconds.
Pour in the white wine and deglaze the pan, scraping up the bits of flavor. Allow the wine to reduce by half.
Pour in the beef broth and heavy cream, then simmer for a few minutes until the sauce thickens.
Add the mushrooms back in and continue cooking for another minute.
Add the steaks back in, just until heated through then serve with the mushroom sauce drizzled over the tops.
*Make sure to scroll up and read the post for substitutions, additions and helpful tips for making this recipe.
Course Main Course
Cuisine American, French
Calories 668kcal
Nutrition Facts
Filet Mignon with Mushroom Sauce
Amount per Serving
Calories
668
% Daily Value*
Fat
47
g
72
%
Saturated Fat
20
g
125
%
Carbohydrates
8
g
3
%
Fiber
2
g
8
%
Sugar
3
g
3
%
Protein
44
g
88
%
* Percent Daily Values are based on a 2000 calorie diet.
*Nutritional data is provided as a courtesy and is accurate to the best of my knowledge. You can verify it using the nutrition calculator of your choice. All data is based on net carbs, without sugar alcohol: Swerve, Erythritol, Monk Fruit or Allulose.