Pepperoni

Pepperoni was a type of meat. It was often used as a topping on pizza.

While Enterprise was in a bad shape after a confrontation with the Xindi, T'Pol got a ration pack with pepperoni pizza. As she was a vegetarian, Commander Charles Tucker III suggested she pick off the pieces of pepperoni rather than eating them. 

In 1986 Dr. Gillian Taylor ordered two mushroom pizzas with pepperoni in a restaurant to time traveler James T. Kirk and herself.

While suffering from the effects of crossing the transwarp threshold, Lieutenant Tom Paris stated that he was craving a piece of pepperoni pizza.