Claudia is partial to her mom's spaghetti recipe (my mom's spaghetti recipe in disguise - more meat and veg than your average store-bought sauce), when it's not making her choke up with unexpected grief. While she doesn't have quite the sweet tooth that Pete or Artie do, she does love a good sweet snack; my headcanon is that she and Pete have an ongoing 'I bought you [sweet snack typical of where this Artifact hunt was] but I eated it' not!feud going, after a while.

Cata and Sam both strike me as fans of stick-to-your-ribs type food, especially if there's an assignment to be had - you never know how long that might take, after all, and you can't really stop for a snack halfway through. Also, while Sam gets blindingly drunk at the beginning of the book, it's noted that that's pretty much exclusively because he's depressed; alcohol does bad things to one's concentration and steadiness of hand.