Tainted Beef Scandal Grows as British Lasagna Meals Recalled for Containing Up to 100 Percent Horse Meat Neetzan Zimmerman · 02/08/13 02:50PM The frozen food manufacturer Findus was forced to recall its line of beef lasagna meals this week after testing by the British Food Standards Agency revealed that, instead of beef, the meals contained between 60 and 100 percent horse meat.