- "Have a pizza... and fun."
- —Jonathan J. O'Neill
Pizza is a popular dish from Earth, made with an oven-baked, flat, bread that is often covered with a tomato-based sauce and mozzarella cheese with a variety of other toppings. Pizza is typically consumed in subdivisions called 'slices.' According to Pete Shanahan, Pizzas are popular among stakeouts. (SG1: "Affinity")
In 2001, Colonel Jack O'Neill and Teal'c brought pizza and the released copies of Star Wars over to Major Samantha Carter's house. However, as she "already had company" O'Neill and Teal'c left, leaving the pizza with Carter. (SG1: "Ascension")
In 2004, when under the influence of the Energy being of M5S-224, Major John Sheppard fabricated a reality where he had a party at a bachelor pad of his. Pizza was ordered at this party. Lt. Aiden Ford took the stack of pizzas from the pizza guy and brought them into the house. (SGA: "Home")
In 2006, when Stargates were being stolen across the galaxy by Ba'al, Major General Henry Landry visited Nerus at his cell at Area 51 and, once again, offered him a feast in exchange for information, a feast which contained pizza (among other things). (SG1: "Off the Grid")
Later in 2006, during a test of the McKay/Carter Intergalactic Gate Bridge, Lt. Colonel John Sheppard got a take-out pizza for everyone back at Atlantis while on Earth. He wanted to upload the macro and dial out before it got cold but his trip was delayed when the Daedalus detected the Tria and went to investigate. (SGA: "The Return, Part 1")
- In reference to a Replicator disruptor satellite that was requested from the Asgard to protect the Alpha Site from a potential Replicator attack Brigadier General Jack O'Neill stated, "Be there in thirty minutes, or it's free." This is a cultural reference to pizza delivery places in the U.S. which promise delivery within thirty minutes of the order, or it's free. (SG1: "Gemini")