Put your oven on broil and place the rack in the middle of the oven.
In a large sauté pan with a cover, melt the butter and add olive oil over high heat and a Worcestershire sauce.
Sauté the beef for 1 minute on each side, then remove and place on a baking sheet prepared for the broiler.
Add the onions, peppers, garlic and mushrooms to the pan and cook for 7 minutes.
Add cabbage to the pan, place a lid/cover on the sauté pan and stir occasionally while the peppers and onions soften.
Put steak in the oven and broil 4 minutes on each side (for medium rare), let sit on a board for 5 minutes before serving.