3 narratively follows the previous game in a dystopian America in 2042 that has been ravaged by war, which had caused the destruction of the former restaurant.

Two search and recovery androids, Cleaver and Whisk (voiced by Twitch streamers Vana (Havana Mahoney) and Negaoryx (Emme Montgomery), respectively) find the chef (the player-character) still alive, and offer them their truck to use as a food truck to continue the restaurant.

[1] At the Iron Speedway (with announcers voiced by Northernlion and Kate Letourneau), the chef is challenged to complete several perfect runs while other competing food trucks attempt to sabotage their efforts.

[2] As with previous Cook, Serve, Delicious games, the player is challenged to make dishes to customer order at various prep and holding stations within the food truck.

After completing the day, the player is rewarded with in-game currency that can be used to buy new recipes and improved equipment for the truck.

Emma Davies of PC Gamer wrote, "it’s testament to CSD3’s compelling nature that you’ll want to keep tinkering with your menu to find that perfectly optimised spread to let you nail it...As moreish as a tube of Pringles, this is as fun to play as a quick snack as it is a full banquet."