Forage

[Sarah]

To wander or rove in search of food; to collect food, esp.forage, for horses and cattle by feeding on or stripping the country;to ravage; to feed on spoil.His most mighty father on a hill Stood smiling to behold his lion'swhelp Forage in blood of French nobility. Shak.Foraging ant (Zoöl.), one of several species of ants of the genusEciton, very abundant in tropical America, remarkable for marching invast armies in search of food.-- Foraging cap, a forage cap.-- Foraging party, a party sent out after forage.

[Sarah]

To roam around a [kitchen] eating either ready-to-consume food such as potato chips and crackers or unprepared culinary components such as dry tortillas/bread/cereal/pasta, condiments that would normally be on top of something else, desserts, or cold leftovers. Food thus consumed is usually washed down with beverages straight from the container. Foraged food is exemplified by a lack of preparation and by its consumer standing or pacing while eating. Many a [diet] focuses on preventing or limiting foraging.
Foraged food generally requires less effort than [bachelor chow] or [ramen] to prepare for eating; anything more than a wrapper or a lid between countertop and mouth may disqualify the food as foraged [grub].

[Sarah]

For real, are you serious?

[Michiko]

(of a person or animal) search widely for food or provisions.

[Lizzy Liz]

to go from place to place searching for things that you can eat or use: