Around Edale/Hope is good
There are a few campsites in the area, decent walking, good pubs with reasonable food.
I stayed at Fieldhead Campsite in Edale and Hardhurst Farm in Hope and found them fine (you may need earplugs for the trains as the Hope Valley line has become increasingly busy but don't let that put you off)
Both listed in UK Campsite
Will give you a chance to see Kinder and some other nice ridge walks with fine views
Coopers Cafe in Edale is good for food every day of the week