Yucca is a starchy root vegetable, similar to a potato. This is another item that is cooked in every household in Costa Rica. Scott Alan ads a flavorful garlic sauce!
Place yucca in saucepan; until yucca is just covered, add salt and lime juice and bring to a boil.
Reduce heat, cover and simmer until tender--about 30 minutes.
Drain and keep warm.
Mash garlic cloves into salt with mortar and pestle (or use food processor).
Add garlic, lemon juice, and onions to olive oil in a separate pan, heat until bubbling, then pour over yucca.
Toss yucca & sauce "lightly" cooking to saute over medium heat; till barely brown but not CRISP!
Serve and enjoy!