1 1/2 lb. lean ground beef or chuck
1 egg
3/4 c. Italian bread crumbs
1/2 c. chopped onion
1/3 (8 oz.) can tomato sauce
1 tsp. salt
1/2 tsp. oregano or Italian seasoning

Mix together. Roll thin. Top with 2 cups shredded Mozzarella cheese. Bake at 350 degrees for 15 minutes. Top with remaining can of tomato sauce and 1 (8 ounce) can tomato sauce. Bake 30 minutes longer.