Sounds like it could be dosa
Looks like a samosa https://en.wikipedia.org/wiki/Samosa
I was also going to say samosa, you got here first though. They are yummy, and flavorful.
My guess would be Papadam. Seems to match the description rather well, except for the shape.
I have eaten papadam and it doesn't taste like beans to me
Taste more like lentil flour to me
