1 1/2 lbs. hamburger
1 sm. onion
1/2 tsp. oregano
Salt & pepper (to taste)
1 can Hunt's special tomato sauce
1/2 can water (if needed)

Brown onion in butter in saucepan; add next 3 ingredients. Stir and cook slowly until boiling; then add egg yolk and return to boil. Cook noodles as directed on package.

MEAT SAUCE: Brown first 4 ingredients; then add tomato sauce and water if needed. Using a 9 x 13 inch pan, put a little meat sauce in bottom of pan, add a layer of noodles, meat sauce, cheese sauce and Mozzarella cheese slices. Add 2 more layers the same as first and top with shredded Mozzarella cheese. Bake at 400 degrees for 30 minutes or until brown.