Tauger / Los Angeles Times) Chichen Itza/Holbox (36) At lunchtime, every office worker within a five-mile radius seems to be gathered inside the Mercado La Paloma complex near USC. The most coveted seat inside the busy food court is the chef’s counter at
Holbox, the broadly Yucatán-style marisqueria from Gilberto Cetina Jr. The menu teems with fresh, exquisitely prepared seafood: yellowtail-uni ceviche; griddled scallop tacos with chile morita; smoked fish tostadas with an arbol-peanut soy sauce. The