Donald Goerke the inventor of the SpaghettiO concept died 1.10.2010 of heart failure at 83. He was the marketing manager for Franco-American and was asked to supervise the development of a canned pasta for children. The "O" fit the bill. easy to pick up on a spoon, strong enough to be reheated, and relatively neat to eat.
FYI-150 million cans of SpaghettiOs are sold each year!!