Mexico City’s Mercado Jamaica, a jumble of produce vendors and flower sellers, is not a place you would expect to find a gourmet establishment in. But this is what makes this public market so appealing: Hidden away among the various vendors in this massive market are several outstanding food spots, ranging in size and scope from a nondescript green chorizo taquería to a fine-dining seafood spot. Mariscos El Paisa didn’t start out as a “gourmet” restaurant when it first opened back in 1958 – like many other market establishments, it was humble and unpretentious. But in recent years, the kitchen has upped its game, putting out elevated seafood dishes (although the restaurant still retains an unpretentious vibe).