Just because you are not eating a burger doesn't mean you are already saved from the horse meat scandal. This time, Findus's ready-made beef lasagna has joined the ranks of products in the market that makes use of horse meat in its ingredients, reports, Daily Mail UK.

But this isn't the worst news, as Findus reps have admitted that the product contains as much as 100% horse meat.

Sky News reports that after testing 18 of the Findus ready-made beef lasagna, 11 of the items reportedly had 60% to 100% horse meat, according to the Food Standards Agency (FSA).

Because of the horse meat finding, The Times reports that the FSA has also asked Findus to conduct tests geared toward finding phenylbutazone in their products.

Phenylbutazone is a cancer-causing veterinary drug, and it has been banned from entering the food chain for potential hazards to human health.

As a result, BBC reports that the FSA will require testing for food companies. "We're going to be requiring every company to test every product line," said Catherine Brown, Chief Executive of FSA to BBC. "If we find any other cases, we will pursue our investigations vigorously until we find out what's happened and put a stop to it."

Findus is a product from Comigel, a French company that has plant operations in Metz and distributes its products in Britain and Europe. Aldi and Tesco-a product that has also recently experienced a debilitating scandal after a human tooth was found in one of its premium range sausages-had already been removed from groceries, as they are also products of Comigel.

However, Daily Mail reports that Tesco has yet to conduct tests on the Every Day Value Spaghetti Bolognese, while Aldi will test the Today's Special Frozen Beef Lasagne and Today's Special Frozen Spaghetti Bolognese, because they have not yet been confirmed to contain horsemeat.

Sky News also reports that customers who have purchased any of the listed products above should not eat them and, instead, return them immediately to where they have been purchased.

The buzz about horsemeat in burgers became widespread especially when Burger King a major player in the food industry, has admitted that the burgers sold in the U.K. and in Ireland have become tainted with horsemeat.