🍔 SMASHBURGER SEPTEMBER SPECIAL🍔 FREE SMASHBURGER with $15 PURCHASE 🎉 👤 Must be Rewards Member 📅 WHEN: Expires 9/26/26 📍Located Grand Parkway and Westpark Tollway at 6645 S fry Rd Ste 600, Katy TX 77494. Offer verified September 2026 - Offer Link.