The George in Castleton is pretty easy going, straightforward pub grub, no problem with muddy boots etc. If that doesn’t suit there’s a number of other pubs in the village across the price range. Ashford Arms in Ashford in the Water is ok too but probably off your route. Did have a poor meal at one in Castleton a while ago but can’t remember the name, I’ll have a think. Bulls Head in Castleton is OK, depends where you set your sights really. The poor meal was at Ye Old Nags Head but it was nearly a year ago. Have used The Ramblers in Edale which was Ok, muddy boots & easy with children, we also used The Old Nags Head in Edale for a beer a couple of weeks ago, didn’t eat but looked ok.