Should be something we can do for some quick gralat-making. Giving food to some of the chefs or kitchens to serve the soldiers in the barracks. Even homeless NPCs, too. I'd reckon food would have to pay a lot, since, ye know, people kind of need food to live. Obviously it doesn't matter to players but NPCs would probably appreciate it.
Food is almost strictly cosmetic to homes, but can also give you HP assuming you're AP is above 52.
Just an idea.