Good to know! I am sure this is also a super common food in Argentina (I can say it is a favorite one, after "asado") and you can ask for it in a restaurant or fast food as "tortilla de papas" (sometimes the potatoes are fries or else boiled and cut in cubes); "tortilla" is used for this kind of omelet and other similar preparations with wheat flour, eggs and vegetables. ;)
Note: It is also known as Spanish omelet (tortilla española)
Would "French fried omelette" work just as well? We have omelettes and hash browns. Looks similar yet the two dishes are separate.
O.K. something like omelette is well known ( almost ) everywhere. Omelette, tortillas, pancakes and also pizza. Of course between omelette and pancakes is some difference but anyway it is some cake made from eggs and flour and milk or water. Why it should to be translate like " french" ? By the way in my country it is a common food at the morning.
It is called "french fry omelette" because you use french fries to make this dish. It is very easy to make; just take your french fries and drop them on to a frying pan and let them cook for a minute, in the meanwhile you crack a few eggs and beat them through (add in salt and pepper), then you pour the mixture over the fries, let it cook through then flip it over like you would with a normal omelette.