Jeonju's most beloved restaurant is this 10-seater kongnamul gukbap (bean sprout and rice soup) shop inside labyrinthine Nambu market. Ordering is easy: with squid (ojingeo; plus ₩3000 for two people) or without. You might also want to ask for it mild – the soup is pretty spicy otherwise.
To find it, enter the Nambu market through the south entrance and turn down the alley on your left, across from the shop selling baskets. But really, all you have to do is ask – everyone knows this place.