I also found a new Market place on my way back from Jomtien. I actually bought my dinner there yesterday and I bought the same thing today from the same lady, who also smiled obviously recognizing me from the day before. She sells half a chicken (or maybe duck.. I’m not sure) for 50 Baht.
These markets are everywhere by the way. At first they can be a bit hard to spot since it’s just a cluster of parasols, but underneath there is intense business going on.