Lasagnes a la Bolognaise Gourmandes, a frozen product for catering businesses produced in France, will also be withdrawn.

BBC: Nestle removes beef pasta meals after finding horsemeat

But these lasagnes had only been supplied to one customer, Whitbread, and the product is therefore unlikely to be in school canteens.

BBC: Horsemeat found in some school dinners

Ikea has confirmed it has withdrawn nearly 18, 000 of its elk meat lasagnes from sale in Europe after they were found to contain pork.

BBC: Ikea pulls elk lasagne found to contain pork

One of the largest suppliers of meat products to schools, Brakes, said equine DNA had been found in one of its lasagnes produced by another firm Creative Food, from meat supplied by Hampshire-based Pinnacle Foods.

BBC: Horsemeat found in some school dinners