Here are some Restaurants chains that are open on Thanksgiving. So they should also be open in Boise.
Applebee's - OPEN Thanksgiving Day
Buffalo Wild WIngs - OPEN Thanksgiving Day
Claim Jumper - OPEN Thanksgiving Day
Cracker Barrel - OPEN Thanksgiving Day
Denny's - OPEN Thanksgiving Day
Domino's Pizza - OPEN Thanksgiving Day
Golden Corral - OPEN Thanksgiving Day
KFC - OPEN Thanksgiving Day
Little Caesars - OPEN Thanksgiving Day
Marie Callender's - OPEN Thanksgiving Day
McDonald's - OPEN Thanksgiving Day
Panera Bread - OPEN Thanksgiving Day
Quiznos - OPEN Thanksgiving Day
Red Robin - OPEN Thanksgiving Day
Round Table Pizza - OPEN Thanksgiving Day
Sizzler Steakhouse - OPEN Thanksgiving Day
Sonic Drive-In - OPEN Thanksgiving Day
Starbucks - OPEN Thanksgiving Day
Open for Thanksgiving Day 2012