In that weird Casual Gourmet Burger category (you know, those places where they use, like, tiles from the Space Shuttle and old shovel blades and shit instead of plates for your NT$300 burger), like Bravo (best fries in Taipei) and Rebel, there's a newish one open near the top of Chuanching Rd, near the WTC.
It's called Selfish Burger.
I went there for lunch with my kid.
It was kind of weird, because the burgers were really not big, circumferencially speaking, but they were really...well, tall, I guess??
I was getting ready to be outraged that the size of their stupidly expensive burger was so paltry, but it was super tasty, and ended up being somehow really filling.
My kid said it best, I think, "Those burgers, they were really small on the outside, but way big on the inside"