Mountain of Food

A dream of every child, immature character, or Big Eater: a giant pile of their favorite food.

Of course, you'd only be able to eat so much before you'd begin to hate the taste (not to mention the stomach pains.) And such a big, unprotected amount of food would usually spoil pretty fast.

Comic Books

In one Archie comic strip, Jughead has a dream where he's rushing toward a mountain of burgers — only to be stopped in his tracks by a stern-looking Archie. Jug wakes up, visibly angry, and when the real Archie greets him in a friendly manner, he coldly brushes him off.

Film

A lot of film versions of A Christmas Carol portray the Ghost of Christmas Present as sitting atop a giant mountain of food. This is, of course parodied in the Brawl in the Family Christmas special where the character is played by Kirby.
- As well as the FoxTrot arc in which Jason is Scrooge and Peter the Spirit of Christmas Present, Peter explains the conspicuous lack of a mountain of food as having had a light lunch.
Probably the best example of this trope from Cloudy with a Chance of Meatballs (the movie, anyway) would be the huge pile of leftover food made after a month of food weather (affectionately called "Mt. Leftovers").
In The Beatles' Magical Mystery Tour movie, and album booklet, Auntie Jessie nods off and has a dream about mountains of spaghetti.

Literature

A unique example found in the book Pornucopia depicts a huge ice cream mountain that, while making for a popular ski resort, is quite nauseating for the people who have to work there and experience its sickening sweetness for hours every day.

Puppet Shows

In an episode of PB Bear and Friends, a genie is asked for a giant mountain of candy. Near the end of the episode, he also creates a mountain of bananas for a monkey.

Western Animation

In the Ed, Edd 'n' Eddy episode "Stop, Look and Ed", Sarah and Jimmy make a big mountain of ice cream (and proceed to slide down it with their mouths open).
Rugrats, "Ice Cream Mountain": The eponymous mountain is actually a decoration in a miniature golf course, but babies don't know that and Hilarity Ensues.
In one of The Simpsons' Halloween episodes, Homer Simpson's Ironic Hell punishment was being forcefed "all the donuts in the world" and was surrounded by piles and piles of them. He successfully ate them all and was disappointed there weren't any more.
In an episode of I Am Weasel, Weasel and Baboon land on a dessert island.