Whenever a fifth Sunday squeezes into the crowded calendar, Nancy Lewis and her crew of Spanish cultural champions fill their mouths with linguistics and their bellies with delectable Latin food. The group samples authentic Latin cuisine outside of the standard Sonora, Mexico, fare, including the centrally located Havana Cafe (Cuban) and Eliana's (Salvadoran), the West Valley's Mi Cocina (Ecuadorian), and Scottsdale's Pepin (Spanish). In the spring, a group of 35 hungry folks gathered at a recent favorite discovery, Mesa's tiny Restaurante Salvadore?o, chowing on healthy portions of pupusa (thick hand-made corn tortilla stuffed with cheese or meats), fried plantains, and succulent entrees for under $10, including pollo encebollado (chicken with onion) served with black beans and rice. The event is both Spanish- and English-language-friendly, and newcomers are always welcome. ?Buen provecho!