South American cuisine pizza, being closer to calzones. Pasta and polenta are common in Argentina and on the Pampas generally. Empanadas and choripán are very popular fast food in Argentina and Uruguay. Churros, ensaïmada, alfajor, Spanish tortillas with potato, meatballs, sopa de mondongo, and puchero are Spanish derived Pampas cuisine. Mate is also found on the Pampas. Early South American restaurants in the United States included Caso do Brazil in Reseda, California, which opened in 1955, and the Machu Picchu nightclub in Miami, Florida, which opened in 1963, serving Peruvian dishes such as ceviche and anticuchos. South American foods are increasingly imported into
Mesopotamia, Argentina only a thin fertile layer that can easily be washed away. Corrientes is marshy and wooded, with low hills. Entre Ríos is covered with fertile pasture land stretching into Uruguay. The flora of Mesopotamia includes the yatay palm ("Syagrus yatay", "Butia yatay"), which is a protected species in the El Palmar National Park, and the "Araucaria angustifolia" (Paraná pine tree). Tree ferns, orchids and large trees can also be found. "Yerba mate" ("Ilex paraguariensis") is grown largely in Mesopotamia; 1,800 square kilometres of Misiones are devoted to its production. The region is also important for cattle and sheep, poultry, linseed,