Baked Ziti

1 - 16 ounce box ziti, cooked according to package directions
1 pound ground beef
1 medium onion, chopped
16 ounces ricotta cheese
1 large package mozzarella cheese
1 egg
1/2 cup red wine
1 teaspoon oregano
1/2 teaspoon garlic powder
1- 16 ounce jar sauce
1 cup sliced mushrooms

Saute ground beef with onion; drain. Mix ziti with meat/onion mixture.

Meanwhile, beat egg; mix with oregano and garlic powder. Mix this mixture with ricotta, wine and sauce. Turn ziti/meat mixture into a baking pan with ricotta/sauce mix; mix well. Top with sliced Mozzarella. Bake at 350 degrees for approximately one hour.