If you tried to order a hamburger in ancient Rome, it wouldn't come with fries. No ketchup either: Tomatoes and potatoes wouldn't reach European shores until the sixteenth century. Five thousand miles away in what is now called the Pacific Northwest, there'd have been no lettuce, mustard, or sesame seeds for the bun. Cows and pigs aren't native to the Americas, so elk or bison would have to sup for an all-beef patty.
Rathmines, long considered a culinary desert, is seeing a renaissance with the emergence of higher quality restaurants, breaking the previous trend of fast-food dominance.