Question: which restaurants are participating in national taco day?
Answer: Taco Bell. The deal: The ubiquitous Mexican-inspired fast-food chain is offering a special taco gift box -- dubbed the National Taco Day $5 Gift Set -- in honor of the major food holiday. ... 
El Pollo Loco. ... 
Tijuana Flats. ... 
On the Border. ... 
Taco Bell. ... 
Qdoba. ... 
Fajita Pete's. ... 
Torchy's Tacos.