This is what I would call a Thai-style burger. It has some lightly fried soft-shell crab, then a crisp, acidic green mango salad with a hot, sweet, salty and sour dressing. Soft-shell crabs are easy eating; they are simply crabs that have recently moulted (shed their hard shells), which they do each spring.
To clean soft-shell crabs, you need to lift up each side of the top shell and remove the filters (long pointy things), cut off the face, and also remove the tail that curls underneath. Be sure to dry them off as thoroughly as possible so they don’t spit during frying.