An Enthusiast Of Bugs

Jekyll has a huuuggee sweet tooth, but doesnt indulge very frequently due to his body/self image issues. Hyde has the same tastes obviously but is usually too focused on alcohol and illicit substances to worry about giving his body actual sustenance

Charlie couldnt cook if her life depended on it, so she mostly enjoys easy, fast, and cheap foods. She likes burgers and anything prepackaged.

Viktor is super picky. He can handle blood, guts, gore, whatever. But put one food he mildly dislikes in front of him and its over. He mostly likes plain, less flavorful foods (soups, bread, cheese, things like that)

Creature will eat literally anything you put in front of him. he is ravenous.

Griffin likes fancy, pretentious foods. The kind of stuff you cant pronounce on menus. On the day to day though she usually cooks something simple for herself because she doesnt trust what the others eat. Her diet is like 95% cigarettes

As for restaurants, I haven't given it too much thought honestly. Aside from the weird shit going on with the main cast the setting is regular old 1960s america.