Heat oil in large non stick skillet over medium heat. Add onion, jalapeno pepper and garlic; stir fry 3-4 minutes or until lightly browned. remove from skillet; reserve. Add beef steaks to skillet; cook over medium-high heat 1-2 minutes, turning once. DO NOT OVERCOOK. Place equal amounts of beef on bottom half of each kaiser roll. Top with equal amounts of reserved onion mixture and chopper tomato. Taken from the Cedar Rapids Gazette newspaper dtd Dec 28, 1993