I agree that these are all American foods and cooking styles. I think, though, that the OP was hinting at the fact that many forgien cultures think of (perhaps incorrectly) American food as “fast food/microwavable/snacks”.
Well, let me say… Clam chowder… New England style, is a treat… love it with cornbread (hey is that "fusion cooking?)
Traditional BBQ/Smoked meat… YUM!
Philly cheese Steak (Well the doc says not too often, but, I will give up a few yrs of life for that!)
And just what the hell is WRONG with a “snack”?
Oh sure, the chef can whip up a nice plate of Coq au vin in just 2 hours or so, and it will only cost me $45…
But sometimes, I want a munchie and I want it now… and I don’t want to put on a suit and tie to order it… and I would like to get it with out refinancing my mortgage. Potato chips, Hamburgers, Hot Dogs, French Fries, Little Debbie Cakes, Kentucky Fried Chicken and Pizza (In 1/2 an hour or is free!)…Wow!
Beverages have been largely exculded from this… Americans gave us Coca Cola, Beer in Cans, Wine in Boxes, and coffee.
If not for “US” Know-how and initiative, do you think that the delight of Cappicino would have spread afr beyond its Italian roots…?
If you want authentic ethnic, America has welcomed the world, and both preserved and modified (IE Pizza) the original forms.
On the other hand there is always Haggis…