It is a sandwich made out of plywood. It has spackle and shellac on it.
Role in series
It is made by placing two squares of plywood (for the rye bread), a glue-like product, and a grease-like product. It was served at Rusty's Rib Eye, and was not served for a long time, until SpongeBob summoned Rusty Rickets from the dead (since otherwise, no one could serve it). The item was number 9 on the Rusty's Rib Eye menu. It is unknown how it is edible, as it would be dangerous for any creature to consume it. However, Old Man Jenkins was able to eat such food.
SpongeBob Moves In!
The Rusty on Rye reappears as the first food item that can be made at Rusty's Rib Eye. The player needs three pieces of driftwood, three bottles of shellac, and two cans of spackle to make it. It takes one hour to make, gives 24 happiness when collected, and gives 130 coins when fed to a Bikini Bottomite.