Once they are used to eating spicy food they will get a happy moodlet from eating it. Tolerance to spice is a hidden skill, and as your sim eats more spicy meals, the hotter the dish they will be able to handle. If your sim is not used to eating spicy foods, they will feel uncomfortable after eating the food, and may even find flames coming out of the mouth. The food stalls offer a wide range of cuisine some of which are spicy or require chopsticks to eat. You can find food stalls under the community lot option of build buy mode, if you want to add a specific type of food, to say a wedding venue.
Festivals also generally have at least one food stall, with the Spice Festival having three. In Myshuno Meadows you will always find a Mexican, Filipino, Vietnamese, and a Chinese food stall. You can also find food stalls in the central park, however they do not change overnight. The food stalls are randomly placed in your neighbourhood and change each night at 2am. All neighbourhoods have at least one food or drink stall where you can buy food based on a particular cuisine. The City Living expansion pack introduced food stalls into the game.