70's theme night

I am planning a 70's girly night for some friends of mine as a thankyou for their support whilst I havent been so well... 70's night simply because we can wear stupid outfits (totally ott) and play some real blasts from the past ( music wise).
What I need now is some authentic 70's foody recipes to feed the hoards!
Drink wise is easy... remember mateus rose and blue nun and those terrible punches?? Can throw that down their necks ( as they are all bordering on being alcoholics!) before we hit the good stuff later on, but food is a bit of a problem! What did we eat in the 70's? What classed as party fodder???
Any ideas or recipes appreciated. xx

Fish & Chips is a timeless classic ...

Oops, off now to do some work ...