For a limited time, on GrubHub you can save $12 off a $15+ Taco Bell order when use promo code 12OFFTBELL at checkout!
To use the coupon, add $15+ (before tax, tip, and delivery fee) of Taco Bell on the Grubhub site or on their app (iTunes or Android). On the final screen, enter promo code 12OFFTBELL then pay via credit card or PayPal.