As another harrogate resident lol try...
the orchid reataurant...thai food..part of the studley hotel down near valley gardens...opposite the mercer art gallery....a free gallery
The egyptian restaurant above the blues bar....just down from betties..
one of my favorites
Darley mill is a good trip out on the a59, skipton road...huge mill with clothes and household stuff with a restaurant,garden and duckpond
Marigold cafe down on the river at knaersborough...towards the bottom with rowing boats
Bettys will be packed and is expensive but go to harlow carr gardens which is part of bettys now so great food and may not be as busy as the town centre one which gets loads of coach parties.
The fair will be on the stray ...only small but fun.
For lunch ...the edinburgh woolen mill on parliament st. has a cafe downstairs which is nice and good value
try to avoid town centre late at night as full of drunk kids
Hales bar again near valley gardens is a nice pub as the inside is listed and still has natural gas lamps on the bar.
hope you have a nice weekend