Our guide recommended a great Michelin recommended restaurant misty a 10 minute walk from our hotel in the old town, The House by Ginger

We have found similarities in Southeast Asia cuisine but differences too.  Thai is more spicy than Cambodian,  which I think is my favorite, especially the dishes made with lemongrass and cashews!  All of them have noodle dishes,  many with curry,  but Thai has more and spicier curry than the others too.  Generally the beef is very tough.