Stopping in the open air market one day allowed us to feast upon this fabulous food. We were able to pick out the ingredients to go into this dish. It was super flavorful and healthy. I think it cost me a whopping 40 bahts (just over $1.00). We walked away stuffed!
There are always plenty of vendors who probably speak enough Engilsh and gestures to figure out what you want. Don't be afraid to go off menu, pointing to things that look tasty and trusting everything to come out tasty in the end!