Futterneid, the final game in Friedemann Friese's Friday Project, is all about the snacks lying on a table at a game night. To prepare for play, group all the stuff on the table into five groups. Give each single snack a value depending on the calories, after which each player adds a secret value modifier and the game starts. On a turn, take exactly one piece more or less than the previous player or steal from anyone's unsaved snacks. In the end, players reveal the modifiers and count their score.
Futterneid can be played as a "normal" game without real snacks, but the game comes packaged with five snack bowls and bears a universal "add snacks as achievements to any game" rule, so why not indulge?