In a large bowl, toss yucca, olive oil, half of the cilantro and the juice of one lime. Season chips with salt and pepper. Coat a baking sheet with nonstick spray, then lay yucca slices flat on a baking sheet. Bake for 4 to 6 minutes per side, or until golden brown.
For the Guacamole:
In a medium bowl, mix diced avocado with remaining cilantro and lime juice; season with salt and pepper and mash to your favorite consistency - I like mine chunky. Save those avocado shells to use as a serving "bowl."