Khun Lee's restaurant has over the years proved that their (Thai) food is lip-smacking which their many repeat customers can confirm.
The restaurant isn't fancy and not overlooking the sea but who cares if the food is that tasty and they offer a free pick-up from your hotel in Khanom.
Free pick-up service http://www.khunleerestaurant.com/15047478/service. Contact phone number +6675-326573 or +6681-4777028.