When conquistadores arrived in the Aztec capital Tenochtitlan (now Mexico City), they found that the people's diet consisted largely of corn-based dishes with chiles and herbs, usually complemented with beans and tomatoes or nopales. The diet of the indigenous peoples of Pre-Columbian Mexico also included chocolate, vanilla, tomatillos, avocado, guava, papaya, sapote, mamey, pineapple, soursop, jicama, squash, sweet potato, peanuts, achiote, huitlacoche, turkey and fish. In the 1520s, while Spanish conquistadors were invading Mexico, they introduced a variety of animals, including cattle, chickens, goats, sheep, and pigs. Rice, wheat, and barley were also introduced as were olive oil, wine, almonds, parsley, and many spices. The imported Spanish cuisine was eventually incorporated into the indigenous cuisine.