The cafeteria looks like a basic school lunch room. It is a fairly spacious place, and various lunch tables line the room. The lunch counter is located on one of the walls of the place, this one of several places where Rocky works. There are many circular chairs attached to long rectangular tables for eating. There is also a wall where student artwork is shown.
- "The Third": Leslie tries befriending Gumball and Darwin here.
- "The Dress": Gumball (OopsEggWobbleUnderpants) is served fancy food here, instead of the usual unpleasant cafeteria fare.
- "The Pressure": Gumball and Darwin attempt to hide from Masami and the other treehouse girls here, but to no avail.
- "The Ghost": Carrie repeatedly tries to hijack Gumball's body here, and at the climax of the episode, possessed Gumball goes on a destructive eating spree here.
- "The Party": Gumball attempts to decide on possible dates for Rachel's party here.
- "The Robot": Gumball sees Bobert flirting with Penny here.
- "The Wand": It is briefly seen in Richard's flashback.
- "The Ape": Miss Simian is seen following Gumball and Darwin here.
- "The Curse": Anais explains Gumball's bad luck streak to him here.
- "The Meddler": Nicole eats lunch with Gumball here.
- "The Helmet": Gumball knocks over Tina's sandwich.
- "The Fight": Tina crashes through the school lunchroom after a panicked Gumball surfing on a lunch tray.
- "The Flower": Gumball (possessed by Jealousy) is seen harassing Leslie here.
- "The Banana": Gumball is seen asking Banana Joe for his tube of glue.
- "The Phone": Ocho mentions that he apparently blew it up.
- "The Words": Jamie cuts in front of Darwin waiting in line for the food.
- "The Skull": Clayton eats here with Gumball and Darwin.
- "The Bet": Bobert chases Gumball.
- "The Watch": Gumball and Darwin feel guilty for losing their dad's watch.
- "The Sidekick": Gumball and Darwin argue here.
- "The Storm": Alan and Carmen have some romance time. Later, Alan stands up to Masami, and proves his love for Carmen.
- "The Lesson": Gumball and Darwin try to intimidate their "inmates" during detention.
- "The Voice": Gumball and Darwin talk here.
- "The Sweaters": Gumball and Darwin introduce it to Sarah.
- "The World": Gumball is seen eating a platoon of fry soldiers, along with a burger, and a soda drink.
- "The Fan": Gumball, Darwin, and Sarah are eating lunch together.
- "The Coach": Jamie apologizes to Gumball. Jamie can also be seen eating Sarah and Banana Joe.
- "The Recipe": Tobias eats Anton.
- "The Name": Zach eats the Apple Kid here.
- "The Extras": The minor characters sing their "Just Notice Us" musical number.
- "The Move": Clayton and Gumball argue.
- "The Bros": Gumball eats here with Penny and Darwin.
- "The Mirror": Gumball and Darwin are seen eating an underwear here.
- "The Saint": Gumball eats Alan's last meatball.
- "The Safety": One of Darwin's surveillance monitors displays footage of it.
- "The Spoiler": Leslie, Banana Joe, Anton and Juke are talking about The Screamening.
- "The Triangle": Leslie and Darwin are eating lunch.
- "The Others": Gumball and Darwin talk to Jared.
- "The Pest": It is one of the places where Gumball and Billy fight.
- "The Gift": Multiple students are seen running through here.
- "The Upgrade": It is one of the places where Gumball and Darwin test Bobert's new system.
- "The Uploads": It appears briefly in a video.
- "The Hug": Gumball and Hot Dog Guy buy each other lunch.
- "The Girlfriend": Jamie and Darwin have a "romantic meal" here. Later, Gumball runs away from Jamie in the cafeteria.
- "The Parasite": Gumball, Darwin, Anais and Jodie eat here.
- "The Slap": Gumball tries getting Tobias to slap his butt.
- "The Fury": Gumball, Darwin, and Anais eat here.
- "The Compilation": Leslie sings part of "Nobody's A Nobody."
- "The Scam": Carrie possesses Coach here.
- "The Stories": Molly can be seen telling her stories here.
- "The Guy": Anais and Josh eat here.
- "The Code": Gumball and Darwin pester Ocho.
- "The Test": Gumball is seen doing the opposite of what he usually does.
- "The Potato": Gumball, Darwin and Idaho have lunch here.
- "The Matchmaker": Darwin attempts to talk to Carrie.
- "The Catfish": Louie sends messages to Gumball and Darwin here.
- "The Sorcerer": Gumball tries getting a superpower.
- "The Uncle": Ocho flips a table.
- "The Weirdo": Sussie gives out gifts.
- "The Best": Carmen tells Gumball that the way he is eating his food is bad.
- "The Puppets"
- "The One"