The food on the island is excellent and costs around 55-75 Lps ($3.50-4.50). The backpackers thought this was expensive. Everybody ate everything, without care whether the food was washed in the water. This means that most people had daily bouts of diarrhea. But, nobody seemed to be bothered -- it became more of a joke or subject of conversation or a minor inconvenience rather than anything else. It didn't stop anybody from diving or partying.
Every day that I went diving for breakfast I ate delicious homemade cinnamon rolls, a cup of coffee and a bottle of water from the stand across the street from UDC for about 17 Lps. The ultimate breakfast is the heuvos rancheros at Munchies. For 55 Lps, you get the heuvos rancheros, orange juice, coffee and toast. The only problem at Munchies is that the sandflies seem to be at their worst over there.
My four favorite all around restaurants were Ultra Lite, an Israeli-like restaurant a little farther up on the strip closer to the beach; DJ's for their grilled fish; Island Cafe for their chicken fingers; and Bundu Cafe for their Italian night, where an Italian woman spends all day making Italian food from scratch. Bundu and DJs are open for dinner only a couple of nights a week, so when they are open, they are packed.