**CHICKEN WARS: Shake Shack Throws Shade at Chick-fil-A with Free Chicken Sandwich Promo**
New York City – Shake Shack, the popular fast-casual restaurant chain known for its burgers and shakes, recently unveiled a bold promotion to lure customers away from its competitor, Chick-fil-A. The campaign involves offering a free chicken sandwich every Sunday in April, taunting Chick-fil-A for its longstanding policy of being closed on Sundays. Shake Shack’s move drew attention to its antibiotic-free chicken, seemingly taking a jab at Chick-fil-A’s recent decision to move away from antibiotic-free …