Canned Bread is bread packed conveniently in a can. It is one of Squidward's favorite foods to eat. It was first seen in the episode "Squidville."
The can somewhat resembles a soda can in shape. The can is a silver color by itself. The label is grayish-white with a horizontal red stripe going around the can near the top. On the stripe reads the name of the food, in all caps and written in white.
Under the stripe is a picture of a loaf of bread. Under that are two yellow burst shapes. The one on the left reads "Best Thing," and the right one reads "Since Sliced," making "Best Thing Since Sliced," which might be the slogan.
The canned bread product makes a cameo appearance in "Atlantis SquarePantis," in Squidward's painting, though it is in a different kind of can, similar to what the one that appears in "SpongeBob Moves In!" looks like.
It later appears in the game, "SpongeBob Moves In!" as a product in which you can make. It was introduced during the summer 2014 update, where the theme was exercise and eating healthy to unlock things like the Fast Food Coliseum.
Canned Bread is a real life product in Japan, and can also be found in select stores in the United States, among other countries.