Firehouse Subs is offering a FREE Medium Chicken Gyro Sub with ANY purchase when you order through the app and use promo code TRICK2G at checkout! The chicken gyro is made with grilled sliced chicken breast, feta cheese, sliced cucumber, lettuce, tomato, onion, and a zesty pepperoncini tzatziki spread on a toasted sub roll.
This promo code is valid for a limited time only.