The TV spot is accompanied by a digital campaign - both created by Iris - and coincides with pupils and parents settling back into a routine following the recent return to school.
The new variant is Cheese and Smokey Bacon. The campaign is aimed at families looking for a good value meal with no waste.
The creative shows the same girl in different seasons, who shares her ordinary leftover pizza crust with birds in spring and summer but decides not to share her stuffed pizza crust with two robins as winter approaches.
Creative director is Andy Taylor with copywriting by Stuart Nightingale and art direction by Jonathan McKemey. The film is produced by Tomboy Films and directed by Kirk Jones.