I found myself in Old Town Pasadena at 4pm yesterday and having skipped lunch, I thought I might be lucky enough to try Yoshiz. Try again. There is new signage and a menu taped to the window, that says "Origami Japanese Kitchen (formerly Yoshiz)." The menu looks ok, altho a little small, and hopefully this is one of those cases were fewer things on the menu allows the kitchen to concentrate on doing the dishes really well. However, the hours are the toughest part: 10:30 - 3pm, Mon - Sat. I'm rarely in that part of town for lunch.
I wound up at Tortas Mexico around the corner. It was my first time, but it wasn't very exciting.