[to11mtm]

There are a few things that come to mind with the white castle burgers:

- Square patties already designed for uniform mass-cooking

- Square-ish bun (Easier to grab/guide I would assume)

- Open-face Box packaging rather than a wrapper or clamshell

It's a pretty streamlined design as-is, as evidenced by how quickly you can get a crave case from time to order.

[djbusby]

Circle or square isn't that critical, the uniform shape is the key.

[giantg2]

I think the Miso videos usually even show "regular" patties.