Although 'Krazy' comic had not featured any spooky type strips for 70 odd issues, there came a special themed issue from 26th Febuary 1977. Other non-horror/spooky comics sometimes had a special themed issue or special, and not always around Halloween which many general comics/magazines choose to do a spooky special. 'Beano' comic published a few spooky specials in recent years and 'Buster' had a couple of softcover annuals - 'Buster book of spooky stories' 1975 and in 1976. These were comicstrips, stories and real life spooky stories and legends.
I am sure there are many others, of which I will post as soon as I find out about any ones of interest. Thanks to John for the Krazy cover.