Looking for somewhere for a family Sunday lunch
The Old Bull and Bush is reliable, family friendly, walking distance to the Heath and has a good car park.
The Spaniards is also good but gets mega busy, best to book. Close to Heath, tiny car park.
Other options in Hampstead proper and Hampstead village but the two I recommended are my favourites and best for combining with a walk, in my opinion.
I’ve seen The Holly Bush recommended a few times (although haven’t been). As it’s a Fuller’s pub am sure it can be relied on for quality! https://www.hollybushhampstead.co.uk/
The Spaniards Inn does a fab Sunday lunch! I know our editor Charlotte really rates it there.