Class: Cook
The cook has the ability to... cook with what they loot throughout the open world. Then they can sell their dishes in a restaurant. Certain ingredients (bananas, nuggets, cakes, etc.) are of better quality than others (fud, burgers, etc.) while others are not recommended (cigarettes). Unlike the bartender, you need several ingredients to cook and an oven (think Breath of the Wild).
The gameplay loop is not about serving people food, but about intelligently chaining dishes together.
Gameplay: You must gather ingredients in nature and make the best possible combinations to create good food. Then you send it and the better it is, the more money and XP you earn. Good taste is not incremental but exponential, so it is more interesting to combine the best ingredients together rather than distributing them between dishes. Plus, the more good food you send in a row, the more combo you get that makes you earn more. So you are incentivized to seek out better and rarer ingredients.