Mince your garlic, shallot or onions, and slice the mushrooms, set aside.
2Salt and pepper your steaks.
3In a large oven proof frying pan ( I use my iron skillet) add about 2 tablespoons of the oil and cook the steaks on medium high heat for about 6 minutes on each side.
4Place the skillet in the oven and continue cooking till desired doneness.
5Remove the steaks from the skillet and tent with aluminum foil to keep warm, while preparing the sauce.
In the same skillet add another tablespoon of oil if needed. Add the mushrooms to the skillet and season with salt,and pepper.
6Cook on medium high heat until mushrooms are tender.
Stir in the onion, thyme, and minced garlic; cook until soft.
7Stir in the Marsala wine scraping any pan drippings from the bottom of the pan. Add the Worcestershire sauce and cook over medium high heat until mixture is reduced to about 3/4 its original volume and then stir in the lemon juice.
8Plate your steak and spoon sauce and mushrooms over your steak.