They get ramen all the time in prison. And meat sticks. And candy. Genpop prisoners in WA actually have a pretty extensive commissary they buy all of their supplies from. The pen doesn’t provide much, other than 3 hots and a cot. But they can work, earn, and buy. Toiletries, books, food items, etc. There is a ton of stuff they can buy to make life not suck so bad. The dudes in the hole can’t get as much though.