5/25/14: This week on "The Food Guys:" Jon and Greg take up paella, the rice dish from Valencia, Spain. Spanish short-grained bomba rice is added to a paste composed of onion and grated tomato cooked in olive oil, and along with smoked paprika, a pinch of saffron, and chorizo, chicken or shellfish, the paella is cooked in such a way as to form a crust on the bottom of the rice. "Paella" refers to the round, shallow, polished cooking pan itself.