One of the best and perhaps cheapest ways to sample Cambodian food is to visit the food stalls in the markets and along the roadside. These are a great way to sample the cuisine as usually you can taste the dish before deciding what to eat.
Cambodian delicacies consists of a variety of dishes including Chong Roet (roasted cicadas), Khao Phoun (rice noodles in a coconut sauce), Somla Chapek (ginger flavoured pork soup), and also Pan Chaiv which are pancakes filled with meat, bean sprouts and spices. These are usually eaten with green vegetables and a peanut sauce.
Phnom Penh is the best place to sample cheap Cambodian cuisine as it offers the biggest variety, but there are also a number of good restaurants in Siem Reap.
And if the Cambodian cuisine does not suit your taste buds you will always be able to find a large variety of Thai, Vietnamese, Chinese, French and Mediterranean cooking.