Overly Sensitive Owl

Captivity Waffles

The World's Biggest Pancake

Chunky Puffs

Spongebob - Mermaid Man and Barnacle Boy Bran Flakes

Mermaid Man and Barnacle Boy Bran Flakes are a type of breakfast cereal. It is only seen in the episode, "Mermaid Man and Barnacle Boy II."

It is a light brown box with the modern versions of Mermaid Man and Barnacle Boy on it, suggesting it is either a more recent product or the box art simply changed when the heroes came out of retirement.

There is also a large cereal bowl that resembles Mermaid Man's trunks and belt that is probably a tie-in to this product. SpongeBob also eats this cereal with Breakfast Bites which is likely another tie-in.

At the start of the morning, SpongeBob eats them while he watches the Mermaid Man and Barnacle Boy episode. He mostly likes them because Mermaid Man and Barnacle Boy are on the box. 

 Bran Flakes is similar; they're possibly the same thing but with Mermaid Man and Barnacle Boy on the box, or else made by the same company/manufacturer.

Spongebob - Kelpo

Kelpo is a cereal that SpongeBob eats in the beginning of the episode "Shanghaied." A fish tries to pass a box of Kelpo off as SpongeBob in "Prehibernation Week," and SpongeBob is seen eating it in "The Bully" while Flatts is punching him. It appears frequently in the SpongeBob SquarePants. The brand's most prominent featuring was in "Waiting," when SpongeBob needed to collect 99 box tops from Kelpo boxes to obtain a free toy in the mail. It is most likely a parody of Cheerios.

Spongebob Squarepants - Bran Flakes

A brand of cereal that is a spoof of Corn Flakes. Old Man Jenkins once mistook SpongeBob for a box of Bran Flakes. It was seen on the episode "As Seen on TV." Old Man Jenkins probably eats it and watched the commercial of Bran Flakes.

Adventure Time - Flakies

Flakies are a cereal eaten by the Snow Golem in the episode "Thank You." The box does not actually contain cereal; instead, the only thing to come out of the box is a pear. It is likely that the box once contained actual cereal, but was refilled differently.

Adventure Time - Bacon Panckes

Bacon pancakes are made by Jake in the episode "Burning Low," and he even sings a song about them.

Adventure Time - Everything Burrito

The everything burrito is an extremely large burrito filled with almost everything that is food, and a few things that wouldn't normally be consumed by some people. In "Conquest of Cuteness," Jake prepares the everything burrito for breakfast for both Finn and himself. The burrito eventually meets its end when it is buried by Jake, much to his dismay, in a grave outside the Tree Fort. It is buried with a sign that reads "My Burrito" out of the suspicion that it was poisoned by the Cuties, ruled by the Cute King.

The everything burrito appears to be a normal burrito, only it is much larger due to the fact that it contains many ingredients.

The contents of the everything burrito include at least: sunny-side-up eggs, a spatula, purple berries (presumably grapes), a fluffy pink swirled substance (presumably cotton candy), a buttered waffle, a green teacup, a stack of buttered flapjacks, a frying pan, a drinking glass with a straw and yellow liquid inside, a carrot, a hamburger, lettuce, some grapefruit, a pineapple, a slice of lemon, a box of noodles, a bowl of cereal, sandwiches, a carton full of eggs, tacos, a loaf of bread, a ham, a donut, a pumpkin, a banana, a milk carton, bacon, a turkey, cheese, a hotdog, a few strawberries, a cake, some more noodles with a meatball, half of an apple, a tomato, two oranges, some pretzels, a few French fries, spam, a plum, a slice of chocolate cake, a slice of pumpkin pie, a speared olive, scrambled eggs, a mushy brown substance (presumably beans), probably poison, (put in by the cute army) and a large tortilla-bread piece to wrap around it.

It is revealed in the book: Righteous Rules for Being Awesome, that Jake ate his everything burrito after he buried it.

Regular Show - RGB2iO's

Regular Show - The Eggscellent Challenge

The Eggscellent Challenge is the name of an omelet dish at Eggscellent, and anyone who eats the complete meal in under an hour can eat for free the next time they come, and they will also win a promotional net hat. It appears in "Eggscellent". It consists of a twelve egg omelet with toppings of chili and melted American cheese, two biscuits, and a medium-sized bowl of fruit salad.

Steven Universe - Together Breakfast

It was a meal that Steven made so he could share it with the Crystal Gems, until it was possessed by the Evil Spirit Scroll, which used it as its physical form. After it was destroyed, Steven and the Crystal Gems decided to make another one, bigger and better. However, they were scared to eat the newly created Together Breakfast due to the events that happened with the old one, so they decided to order a pizza instead.