A shop that sold various types of food was present in Queen's Arcade (TV: Rose) during an event codenamed by UNIT as "Operation Mannequin". (PROSE: Operation Mannequin) The shop's wares included McCoy's, and a box of drink stirrers was present on a shelf. (TV: Rose)
Behind the scenes[]
Although they're not clearly distinct enough in TV: Rose, other packets of crisps served in the food shop include Walkers, some in Cheese & Onion flavour.