Heat the oil in a medium saute pan. Season the beef on both sides and sear it until crispy. Turn it over and add the mushrooms. Moving the mushrooms around with a wooden spoon, allow them to cook with the beef for 2 minutes. Remove the beef, add the shallots, cook for 1 minute. Add the Madeira -- CAREFUL it will flame. When the flame dies down, add the garlic and stock. Add the meat back to the pan and reduce for 3 minutes. Finish by adding the tomatoes, butter, and adjusting the seasonings.
Yield: 2 entrees