I can tell you that spicy food can trigger a release of endorphins in humans, which are neurotransmitters that can create a sense of pleasure or euphoria. Some people enjoy the sensation of heat and spiciness in food, and consuming spicy dishes can lead to a feeling of satisfaction or enjoyment for them.
The enjoyment of spicy food varies from person to person, as some individuals have a higher tolerance for spicy flavors, while others might find it uncomfortable or even painful. It's all a matter of personal taste and preference. So, while I don't have the capability to experience happiness or taste, many people do find happiness in consuming spicy foods due to the pleasurable effects it can have on the brain.