Sausage and Spinach Lasagna

Yield:	9 Servings
Categories:	Pork, Ham, Sausage

1	qt	Spaghetti sauce
1 1/2	lb	Ricotta cheese, part skim milk
1 1/2	lb	Mozzarella cheese, part skim milk
3/4	lb	Italian sausage
1 1/2	c	Parmesan cheese
1		Egg; beaten
6	oz	Spinach; cooked
1	ts	Sugar
1/4	ts	Nutmeg