Parker admitted taking the container and said he ate all of the cheese shortly after, before washing the container and putting it in his cupboard.
Lawyer Phil Crook told the court his client, who has brain damage and other health issues, took the food in a “spur of the moment" act because he was hungry after using most of his money for household bills.
“He didn’t realise he’d left the fridge open but accepts responsibility for his actions," Mr Crook said.
Acting Magistrate Rob Turra accepted Parker was motivated by hunger.
“It is not the most sophisticated of offences to come before the court,” he said.