Turnips. Economical and pretty sustaining, a large one can last two weeks to a month! Chuck it in a stew or a soup! But not on a pizza. That’s the worst thing you can do. Also, turnips work well as a projectile if some asshole on the street below is playing horrible reggaeton and you want to dent the roof of his car to “send a message” about how he is being inconsiderate in not lowering the bass and/or volume.