Thanks to this thread I found the History of Pasta website.
It has this to say about Lasagna....
http://www.knet.co.za/pastayvette/history.htm
I found this too which was interesting...
http://www.inmamaskitchen.com/FOOD_I...torypasta.html
"It will be maccheroni, I swear to you, that will unite Italy."
Giuseppe Garibaldi, on liberating Naples in 1860