Spicy means spicy :-) Packaged foods, some that require preparation.
The street name is spelled Mittraphap Road and it's aka Highway 2. The restaurant is along the highway on the Assawan Hotel side, just past the entrance to the Assawan Shopping Complex car park heading away from town. If you exit the car park, look to the right for an faded sign at eye-level that says "Vegetarian Food" buried among some flowering plants. The restaurant is like a shack with some small outdoor tables.