Fry (sauté) the onion and garlic in half the oil
for 2 minutes, stirring. Add the spinach and
cook until thawed.
Stir in the oregano, salt and
pepper and the nutmeg. Boil rapidly until all
the moisture has evaporated. Remove from the
heat and cool slightly.
Stir half the Cheddar
into the Ricotta and stir into the spinach
mixture. Put a thin layer of the spinach mixture
into the base of a greased ovenproof dish.
Top
with a layer of lasagne. Continue layering,
finishing with a layer of pasta. Beat the cream
and egg together with a little salt and pepper.
Stir in the remaining Cheddar. Spoon on top of
the pasta and sprinkle with Parmesan.
Cook in a
moderately hot oven at 190°C/375°F/gas mark 5
for about 3540 minutes until the pasta is
cooked through and the top is golden brown.