A Hot Dog is a purchasable item in Paper Mario: The Thousand-Year Door. At Glitzville, at the hot dog stand sells the item for 10 coins. The item heals 5 HP and 5 FP. As part of a trouble posted at the Trouble Center, if Mario takes two Hot Dogs and a Mousse Cake to Bub-ulber in Petalburg, the Bub-ulb will give the plumber a useful Dried Bouquet.
One of the other known forms of Hot Dog was the Southern Fried Egg Dog of Tastiness, a Hot Dog made with an egg from a "southern island", probably either Lavalava Island or Yoshi's Island. The Yoshi Egg Hoggle planned to make this Hot Dog out of, though, didn't cooperate (eventually bursting into the Yoshi Kid), resulting in no Southern Fried Egg Dogs of Tastiness being sold.
Another form of Hot Dog involved mixing the Ratooey Businessman's Hot Sauce with another of Hoggle's Hot Dogs, the Fat Dog, to create a Hot Dog known as the Tongue Blistering Fat Dog, but it is unknown if it ever happened. In the Nintendo Switch remake, Zess T. can combine a Hot Sauce and a Hot Dog to make the Hottest Dog.
The Hot Dog later appeared in Super Paper Mario as a recipe. Dyllis can mix a Power Steak and a Fresh Veggie to create a Hot Dog, or it can be bought at the Itty Bits in The Overthere for 120 coins. It restores 20 HP and cures Poison.