Driving through the middle of Puerto Rico while exploring the mountainous regions, we stopped into…read morethis roadside restaurant. It had a good crowd outside, which is always a good sign, and a handful of people inside. They offer a simple lunch menu, where you have an option for two sides, and a main. They do a fantastic skirt steak in onions (bistec encebollado), which is what I had, along with yuca and beans and rice. This was a fantastic lunch, and they have great drinks, too!
The price can't be beat here, either!
One word of advice, like a lot of restaurants on the island, they keep it REALLY cold inside. Our food got cold while we were eating, and it was so uncomfortable that we skipped dessert (yea, *I* skipped dessert).