Genaro can be found in Freeside by the North Gate selling different types of food. When asked where he gets his food from, he is reluctant to give much information besides the fact that he has helpers around bringing him different types of food to cook, and that he doesn't want to give too much information because the customer may not want to eat it afterward. Judging by his inventory, he has helpers bring animals and insects off the street for him to cook and sell to unsuspecting buyers. Two of his apparent helpers, children, can be seen chasing a giant rat nearby. It is possible to help them by killing the rat, but that does not net any reward beyond children thanking you.