* Shredded and divided Cook Lasagna noodles according
to package directions, omitting salt, and then drain.
Cook sausage until browned, Stirring to crumble;
drain. Stir spaghetti sauce into sausage, and set
aside. Combine egg and next five ingredients, stirring
well. Spread about 1/2 cup meat sauce in a lightly
greased 13x9x2" baking dish. Layer half of the
noodles, half of ricotta cheese mixture, one-third of
mozzarella cheese, and one-third of remaining meat
sauce; repeat layers using equal amounts. Arrange
mushrooms and pepperoni slices on top. Bake at 375
for 20 mins. Sprinkle with remaining cheese, and bake
an additional five mins.