For most foreign dishes you can't just compare the total price to local food. I'm saying that having ordered pizza in Japan, and an actually good one with Buffala for instance will be twice to three times the price you'd pay in Italy.
Ramen chains managed by Japanese people are decently good when I tried them in France (Ippudo for instance), it's not that far from what's served in Japan. It costs 1.5x to 2x more, and the default orders will be slightly adapted to the locals (harder noodles and lower grease by default) but that's par for the course.
> BTW, you can also replicate the form factor using western cooking ingredients/traditions and it still works pretty well.
The toughest part is the sheer amount of time to prepare the soup and dexterity to get good noodles. Spending 8h on the soup with all the ingredients, and repeat I don't know how many times to get to a decent balance is a dedication I don't think I'll ever have to be honest.
I'm currently in a coastal American city, and all food is expensive here! You can have a casual lunch or dinner at a ramen shop, a Neapolitan pizzeria, a Thai restaurant, or an American burger spot and you will pay $25-30 per person after tax and tip at each of them. (Assuming you don't drink alcohol, and assuming you avoid both bottom-barrel and upscale places.)
There doesn't really seem to be a "cheap local default" option like there would be in Japan, or Portugal. I guess McDonald's sort of fills that niche, but this neighbourhood doesn't have one. The two best "cheap" options near me are both Vietnamese.
One nice thing about this is that there's no penalty for experiencing a variety of food.
I've been able get better or equivalent results than most non-japanese ramen places near me by starting with miso paste and fresh noodles from the local h-mart, without the massive amount of work that typically goes into ramen.
Not everyone can fly to Italy for a pizza to save money! But seriously, pizza in most countries is horrible. When I lived in Ecuador the pizza had some really funky cheese. I'm not sure if you can even call it cheese. That's probably why it is almost impossible to order a plain cheese pizza. They are trying to cover it up with an assortment of vegetables and meats.