We spent eight days next door at the Sanfralu B & B, and ate dinner at Gianni AL Vesuvio several…read moretimes. I was surprised at how solidly good the food was, and how reasonable the prices were.
The pizza con bufalo is amazing, as is the bufalo mozzarela appetizer. If you've never had authentic bufalo mozzarella, made from the milk of Mediterranean buffaloes, you're missing out. Blows traditional mozzarella out of the water with a firm exterior and creamy interior.
Their pastas are perfectly al dente and seasoned nicely. The basil pesto pasta is especially good.
The servers are very friendly, and the space is large, and utilitarian, yet comfortable.
If you are staying in Ercolano, it's definitely worth a visit.