The Scooby-Doo franchise has an ongoing series of direct-to-video, animated films released every year, beginning on September 22, 1998 with Scooby-Doo on Zombie Island.

Scooby-Doo on Zombie Island

Scooby and Shaggy are fired from an airport when they eat all the imported foods.

Scooby-Doo! and the Witch's Ghost

Scooby and Shaggy go to the local buffet and order "two of everything on the menu".

Scooby-Doo and the Cyber Chase

Scooby and Shaggy eat everything in the college cafeteria until they are hugely bloated, before the Phantom Virus chases them out.

Scooby-Doo! and the Samurai Sword

Scooby and Shaggy find a large buffet, which comes in handy when they are running from the ninjas.

Scooby-Doo! Legend of the Phantosaur

Scooby and Shaggy look bloated, less so than usual, after having eaten all they can at a barbecue.

Scooby-Doo! WrestleMania Mystery

Dog Growth & Weight Gain-0

Dog Growth & Weight Gain-0

Scooby and Shaggy gorge more than a dozen pizzas ordered from the Pizza-Palooza.

Scooby-Doo!: Moon Monster Madness

Shaggy and Scooby eat all of U-boat's branded cereal packed in the storage crates blocking their path to make the boxes easier to move.

Scooby-Doo! & Batman: The Brave and the Bold

The back cover of the DVD box shows Shaggy and Scooby with full and rounded bellies, presumably from eating donuts. In the movie, Shaggy and Scooby eat their fill of Batman's dehydrated food while at the Batcave.