To pick up a free Doritos Locos Taco, customers can visit any Taco Bell location in the US from 2 to 6 p.m. local time on Tuesday.
The fast-food chain promised to give away free food if either the Warriors or the Cavaliers won a game on the road as part of the "Steal a Game, Steal a Taco" promotion.
The Warriors did just that on Wednesday, when they beat the Cavaliers 118 to 113.
The Golden State Warriors won the championship in Game 5 on Monday night, with a 129-120 game.