National Burger Day 2026 Deals with Free Food, Discounts on Thursday Seven chains including Burger King, Shake Shack, and Smashburger are handing out free or discounted burgers today — some with codes, others requiring just a $1 purchase. Original Source: https://www.moneytalksnews.com/national-burger-day-deals-with-free-food-discounts-on-thursday/