The Krusty Krab 2
The Krusty Krab 2 is the second restaurant founded by Eugene H. Krabs. SpongeBob SquarePants is the manager. It is almost identical to the Krusty Krab. It appears in The SpongeBob SquarePants Movie. In As Seen on TV a second Krusty Krab appeared but wasn't the Krusty Krab 2, since it was just a commercial prop and didn't have a 2 on it. The movie comes after all the episodes so the Krusty Krab 2 is not seen again.
It is merely the Krusty Krab with the number "2" on its roof. The picture shown shows a banner reading "GRAND OPENING" on the Krusty Krab 2.
The inside is pretty much identical to that of the Krusty Krab.
It also appears in As Seen on TV, but it is only a prop.