Guineo
Guineos (pronounced ) usually refers to an unripe banana. The term guineo is sometimes used in reference to its ripened counterpart: the yellow (ripened) banana. The word Guineo comes from Guinea, a country in West Africa, as it is one of the places from which bananas originate. Some make a distinction between the two and refer to green bananas as guineos verdes (green bananas) and yellow bananas as guineos (ripe bananas). Guineos are not to be confused with plantains, which are far starchier than the guineo and cannot be used in the same ways. Guineos are used widely in Latin American cooking as they are versatile, inexpensive, and filling. El Salvador 
Bananas, whether green or ripe, are called guineos in El Salvador. Guineos are a popular fruit in the country and are used for the popular dessert 'chocobanano', which is a frozen guineo covered in chocolate, sprinkles, or other toppings. Puerto Rico 
In Puerto Rico, green bananas are used in dishes such as viandas con ajilimójili, pasteles, sopa de mondongo and sancocho. There are also many other dishes on the island which use green bananas. Green banana flour is widely available throughout Puerto Rico, used for making pancakes, crêpes, waffles, cookies, cakes, tortillas, bread, and other pastries. Alcapurrias – Classic fritters from Puerto Rico that have gained popularity through parts of Latin America, the Caribbean, and the United States. Green banana and yautía is considered the original alcapurria. In addition to a pinch of salt, the dough may also incorporate small amounts of squash, potato, lard, achiote (annatto), and ajo (garlic). They are filled with meat of choice and fried. Most traditionally, they are filled with picadillo, or seasoned corned beef. Escabeche – Green banana and chicken gizzards, pickled in a garlicky brine with bay leaves, garlic, olive oil, onions, and sliced or diced olives, among other ingredients. Dumpling de Guineo – These savory vegetable dumplings are made from grated green banana, green plantain, celery, potato, and yautía, before being mixed with flour (or tapioca starch), milk, eggs, garlic, cilantro, and parsley. They are rolled into small balls and deep-fried. They can be prepared a day in advance. The dumplings are made for soups such as asopao de gandules (pigeon peas and dumpling soup), ajo de pollo y huevo (garlic chicken and egg soup), and sopa de guineos (green banana soup). Gandinga – A thick stew made with pork entrails as the main ingredient. Besides the pig's heart, kidneys, and liver, among other cuts/parts, this dish is prepared with ingredients such as manzanilla olives, sofrito, and capers. A classic plate serves gandinga with avocado and boiled green bananas on the side. The dish is important gastronomically in Afro-Puerto Rican culture, as historically, slaves were given limited food sources, usually consisting of rejected animal meats and parts, in addition to green bananas. Guineo Niño – Also called jibarito envueltos, this dish consists of yellow finger bananas mixed in a batter of flour, baking soda, sugar, vanilla, baking powder, and milk. They are then deep-fried and eaten as banana split, or alone. They can also have coconut flakes and spices added into the batter. Guineos Verdes en Fricasé – Green bananas cooked in a spicy, tomato-based fricassee sauce with recaíto, capers, chilies, and olives. Macabeos – Green bananas boiled and mashed with annatto oil and a small amount of uncooked green banana. They are then filled with the meat of choice, made into small balls, and deep-fried. This crescent-shaped banana fritter is found mainly in the town of Trujillo Alto, which celebrates a macabeo festival each year. Serenata de Bacalao – A warm ‘salad’ of green banana and salt cod (bacalao) with assorted seasonal tropical vegetables (such as cabbage, chayote, taro, yautía, yuca root, etc). The mixed vegetables are sliced, as well as the green bananas, and both are first sautéed with bell peppers, in plenty of olive oil, with vinegar added during cooking. The salted cod is shredded and mixed-in. The salad is then garnished with cilantro leaf, sliced boiled eggs, sliced avocado, and julienned onions. References

Puerto Rican cuisine
Bananas
Spanish words and phrases