Pizza

Pizza was a type of Human food, originating as an example of Italian food, that consisted of a square or circular piece of dough covered in tomato or other sauce, and cooked with numerous toppings, the most common of which is mozzarella cheese. Other popular toppings included pepperoni, mushrooms, anchovies, and sausage. The finished pizza was cut into wedge-shaped slices or squares.

In 1986, cetacean biologist Gillian Taylor invited a time-traveler from the future, James T. Kirk, to a dinner of pizza to discuss the future of George and Gracie, two humpback whales she studied. She ordered a large mushroom and pepperoni pizza with extra onions and a glass of Michelob. Kirk, unaware of the size of a pizza, ordered one too. 

Pizza was usually enjoyed hot, but 21st century criminal Loomis found an extra slice of pizza in its box left out atop his sink, and ate it immediately, after arriving home one night in 2004. 

In 2151, Hoshi Sato asked Malcolm Reed's sister Madeline if Malcolm in his youth had never said "Let's go out for pizza" or something similar, but she denied this. Later that year, Commander Charles Tucker III suggested to Tolaris that he should sample pizza, since the Vulcan was unaccustomed to Human cuisine. 

Hoshi Sato had fond memories of a pizzeria called Fiorella's in San Francisco on Fountain Street. In 2153, Tarquin extracted these memories from her mind to create the perfect slice of pizza. 

While the starship USS Voyager was trapped in the Delta Quadrant, Tom Paris tried to convince mess cook Neelix to hold a weekly pizza night. Neelix thought there might be difficulty in replicating the cheese. 

While suffering from the effects of crossing the transwarp threshold, Lt. Paris stated that he was craving a piece of pepperoni pizza with Kavarian olives. 

While defecting to the Federation with Odo, Weyoun Six sampled the runabout's entire menu. One of the meals he had was pepperoni pizza, which he attempted to eat with chopsticks. 

In the Bashir 62 holoprogram, Tony Cicci claimed that the chef of Vic's Las Vegas Lounge (under Frank Chalmers's ownership) "wouldn't know a good pizza if it hit him in the face". 

In 2376, Neelix, after announcing from his galley that he had no more marsupial surprise left, suggested to the various aliens visiting Voyager from the Markonian outpost that they have pizza instead.