celia wrote:Why the heck are those chips called "Outback Aussie Fries", I wonder ? Firstly, we'd never call them fries (hot chips), secondly, we would never put cheese on chips (salt and vinegar, maybe), and thirdly, we've never had anything called Ranch dressing.

"Outback" is a chain restaurant here in the USA, with an erstaz Australian theme. No connection whatsoever with anything that they might or might not really eat in Oz.
These sort of "theme restaurants" are popular in the States. In retaliation, I've seen fake American restaurants and bars in Paris. Most amusing.
Ranch dressing is a salad dressing (or salad cream, for the Brit-oriented) that is popular among some folks here in the USA. I'm not a devotee, and I don't know what's in it, except that it's a pretty high-calorie concoction. It apparently originated on some cattle ranch somewhere in California, hence the name. Ranch dressing flavor (or maybe that should be raunch dressing?) is popular for corn chips, and in other settings, besides as a salad dressing.
It's typical of the cultural dissonance present in USA theme restaurants that a supposedly Aussie restaurant such as Outback would offer concoctions with ranch dressing.
-Paul W.