If the one you're talking about being near Peckham Rye station is the one i'm thinking of, it's really nice. i'm sure it's called Il Sardinia (just up from Bar Storey). It's almost eccentric and it feels as though the people who own it have been there for years. Inside it's all candelit and cosy. the food isn't 100% italian, for instance there's other european influences there like turkish starters etc. but a lot of the main courses are italian. i had spagetti with clams which was gorgeous. it's got a really friendly, homely vibe and had a lovely atmostphere when i went. would recommend it!