An "airline" I once worked for used to keep the food and drink (15 seater scheduled services) in holdalls , one on the toilet floor splash tray, one on the toilet seat as there was nowhere else to stow it.
I questioned this appalling practice with food standards and public health people and was told that in UK none of the restaurant/shop/retail health/hygiene regs apply to an airline as it is not specifically selling food to the customers, that consumption was probably occurring in foreign airspace and that nothing could be done bar a sick pax taking the company to court in a private action.
Amazing!