4 Staples

Not a 'Two Ronnies' sketch set in a stationers then?

I used to tell the kids about the man who only ate those little metal fasteners - it was his staple diet! 

(How they laughed - well the first 50 times they heard it anyway. )

Beer preferably Adnams

Wine

gin

port

Tea

Pasta

Cheese and

Tinned tomatoes would probably be my 4 

Rice, Onions, Pasta, Passata

milk

eggs

cheese

flour

I am probably with you Goldie at the moment, if it was all I had to survive on........

However, health implications aside my top four would be 

pasta, cheese, various veg, various fruit. Or is this cheating?

Not cheating at all, Ttda. I had thought about putting "any fruit" in but my love/addiction to coffee won out.

I'm probably with Goldie too, does that leave us down to foraging after that....

Yes to foraging - for herbs etc to liven up the unleavened  bread.