I had heard a bit about this dish before I went in. Generally I avoid bread in South east Asia. However because the French influence in Cambodia you actually get really good bread, same is true of Vietnam apparently.
Anyways back to the sandwich, its fries chicken mince and bean sprouts, some other assorted veggies with spam to "garnish". The baguette is slightly toasted so it has a lovely crunch when you bite into it.
In word, awesome. The Sandwich and the black ice coffee(with a crap load of sugar) cost me about US$2.50/10000 riels/ £1.50.