spoon half of the mince into the bottom of an oven proof dish;
place the lasagne sheets on top so that they cover the mince;
layer the spinach on top of the lasagne sheets;
add another layer of lasagne sheets on top of the spinach;
spoon the remaining mince over the lasagne.
Crack the egg into a mixing bowl and add the milk and yogurt. Whisk together using a fork.
Grate the cheese. Add half of the cheese to the egg, milk and yogurt and whisk.
Spoon the mixture on top of the mince. Sprinkle the remaining cheese on top.
Bake in the oven for 25-30 minutes.
Serve with a salad and crusty bread.