Cuban cuisine is simple but robust. One of its most popular home-cooking styles is called criollo in deference to its Spanish origins. The main ingredients in criollo are chicken, beef, pork, eggs, beans, rice and vegetables like tomatoes, lettuce, cucumbers, cassava (yucca) and plantain (a starchy fruit similar to a banana). This is peasant food at its best when spiced with the king and queen of Cuban seasonings: ajo (garlic) and onion.