I use the word adventurer mainly because my love for fantasy is what has me asking this question but to be more realistic im talking about a normal traveler. Someone on a pilgrimage, a group of mercenaries on the move, vagabonds, travelling wise men, stuff like that.

What kinds of food would they make if they set up camp? What would be common if they stopped at an Inn or tavern for the night. What kind of snacks would be eaten while they walked or rode?

EDIT: Noticed after I posted the theme is "Cooking and Baking" so I'm relevant!