Where is Tose E. the chef in Paper Mario and the Thousand Year Door

There is no Tose. E.
Zess T. lives in rogueport on the left side of the map. To get to her, you must try to go on the left of the map, where she will complain she lost her contact lens. Move around, and you will accidentally step on it. Then, order one at the store.
By the time you finish your next mission, it will be available for purchase. Hand it over to Zess, and you can Cook with her help.