Sword of the Stars: The Pit is inexplicably a roguelike game set in the universe of a strategy game. Most strategy games consider food a fungible supply used to purchase units until some upper limit is reached, to the point that “Supply” in Starcraft is often called “food” as shorthand. In Roguelikes, food is used to temporarily top off the constantly-depleting “hunger” bar that keeps you moving down to new levels, preventing you from grinding too long in one spot.
The Pit is a little unusual for a Roguelike since it gives you the ability to craft food items and discover new recipes. These food items can hail from many different races and may or may not be edible without severe processing.