From the Seinfeld episode "The Butter Shave" where an innocent passanger seated next to Elaine and Putty on their plane ride back to New York is refered to as 'vegetable lasagna'.
Elaine: Oh please, I took you back! You know it, I know it, vegetable lasagna here knows it!
Vegetable Lasagna: Please, please! I don't want to get involved!