Step 1

Trim fat from steaks. Sprinkle steaks with pepper and salt. Heat a large skillet over medium-high heat. Add oil; swirl to lightly coat skillet. Reduce heat to medium. Add steaks; cook for 8 to 10 minutes or until medium-rare (145°F), turning once. Transfer steaks to a tray or plate; cover with foil and let stand while preparing sauce.

Step 2

For sauce, in the same skillet cook mushrooms and onions over medium-high heat about 5 minutes or until tender, stirring frequently. Add garlic; cook and stir for 1 minute more. Carefully add wine. Boil gently, uncovered, for 5 minutes, stirring occasionally. In a small bowl combine broth and flour; stir into mushroom mixture. Cook and stir until thickened and bubbly. Cook and stir for 1 minute more.

Step 3

Cut steaks in half and return to skillet; heat through, turning to coat steaks with sauce. Transfer steaks and sauce to dinner plates. Garnish with parsley, if desired.