"The last group made fresh ravioli for lunch," said teacher Nina Barbezat.
"The biscuits, scones and sausage rolls are for afternoon tea and we will have hot chocolate to go with them."
Down the hall, another group were creating sugary cake decorations in the forms of tiny chocolate bears and miniature My Little Pony figurines.
Assistant principal Prabh Mokha said a number of senior students had headed off on adventures around Whanganui or out of town.
"One group have gone to Wellington where they will be visiting Te Papa and having a look around town," said Mr Mokha.
Meanwhile, a group of young dancers showed impressive coordination while practising a routine they had just learned.