Key TakeawaysMcDonald's is extending its $5 value meal offering into December.The deal includes a McDouble or McChicken sandwich, a drink, french fries and a 10-piece McNuggets. The company said it has seen sales growth among lower-income consumers. McDonald's (MCD) said its “Summer of Value” is extending into fall. The golden arches are keeping in place the popular $5 value meal promotion—it comes with a McDouble or McChicken sandwich, drink, french fries and a 10-piece McNuggets—into December. The offerin ...