Lasagne Forestière

Cook the chopped meat and onion in butter, season to taste, and then add the Forestière sauce.

In another pan, sauté the sliced mushrooms until golden brown.

In a baking dish, alternate layers of the meat/sauce mixture, lasagna sheets, mushrooms, Ardennes ham, and Formaggio cheese.

For the final layer, add some of the meat/sauce mixture and top with grated cheese.

Bake in the oven at 180°C (350°F) for 20-25 minutes until the cheese is gratinated.

Garnish before serving with chives, smoked bacon bits, and mushroom quarters.