McDonald's is launching a new value menu, McValue, starting January 7, featuring items like the $5 Meal Deal and a new Buy One, Add One for $1 offer. The introduction comes amid rising food costs. In parallel, Taco Bell revitalizes customer nostalgia with a 'Decades' menu, offering five beloved items from past decades. The nostalgic strategy follows other chains' successful campaigns to engage customers. Both initiatives reflect fast-food chains’ efforts to adapt and attract customers in a competitive market.