Cook spaghetti according to box.
Brown meat, drain off fat.
Add tomato sauce.
Rinse pot used for spaghetti.
In pot: mix butter, eggs (beaten), parmesan cheese
Mix in spaghetti.
Place spaghetti mixture in 9" pie pan.
Place sauce mixture over top of noodles.
Sprinkle mozzarella on top.
Bake at 350° for 15 minutes.