There are a few places along the road that serve rice soup, chocolate rice and macaroni soup.......but that is about all, so if you have not brought an adequate supply of food with you i guess you have to make do with what there is.
I personally purchased pandesal from the pandesal man, bought a couple of bananas if they could be found, then walked along to Daisy's where she would make a cup of coffee for 8 pesos, sell boiled eggs for 7 pesos, then i was all set to enjoy my 30 peso do-it yourself breakfast at her bamboo table. Daisy spoke Ilocano as many people in the village did and was very pleased to talk to her few guests as her grandchild, Paulo scampered around chatting merrily away.
Unfortunately when it comes time to eat you will probably be disappointed unless you bring your own food or your resort offers meals. There are a few turo-turo joints around the village, the best of which seemed to be run by a friendly lady named Daisy. You will find her simple place 10 meters on the left from the tricycle station. She has a simple counter with normally 3 different types of meal on offer along with rice---all at 40 pesos each. Unfortunately my wife eats vegetarian/seafood only and there was none on offer that night but the next two days Daisy manged to cook chop suey to cater for my wife's diet. The food was good and there is not really many places to eat--no restaurants in the main street.
There is no restaurant in the area so one can only eat on the resort and it's very expensive for me. But in San Antonio there are local restaurants lined near the Town hall. It's cheaper and you have plenty of choices.