In a bowl, combine the lemon juice, oil and pepper. Add the squash, cover and marinate approx. 15 mins. Salt the squash pieces. Coat the slices of bread with Masgonzola, layer in the prepared tine with the squash pieces. Thoroughly combine the milk, eggs and parsley, season. Pour the sauce over the bread and the squash pieces.
Bake for approx. 35 mins. in the lower half of an oven preheated to 180°C.