Food seems to be a much-talked about topic. For instance:
Calzone - The specialty of the Italian place where George wants to be seen donating change into the charity cup.
Fusili - Type of pasta Kramer used to depict Jerry.
The different types of soup - From "The Soup Nazi".
Marble rye bread - Jerry steals one from the old lady to help George.
Beefaroni - Kramer feeds too much of it to the carriage horse.
Mutton - Jerry stuffs mouthfuls of it into his jacket pockets.
Swordfish soup - The episode where Jerry owes the guy a lunch.
Junior Mint - Infamous episode.
Snicker Bar - George has the Yankee staff eating it with knives.
Bosco - The name for the chocolate syrup that George uses as his ATM password.
Cereal - Jerry's fave.
Pakistani food - Jerry advises the new restaurant owner to serve ethnic food.
There are a couple of others I can't remember exactly. Poppi had a specialty in his restaurant that Jerry wanted Elaine to try. Mrs. Costanza was cooking something that she was going to serve Jerry's parents on their visit to New York. And I know Newman must have had some scenes where food was on his mind.