Guys, this is from a non gujarati guy who lived in Gujarat most of his life.
This is a traditional winter fare, cooked outdoors over fire. All different vegetables are put in an earthern pot and slowly baked over a fire. The veges are then taken out, shelled/peeled and mashed by hand, eaten with different sauces, and eaten with a light sprinkling of oil, lime, Sev ( bhujia) etc. Quite an experience actually.
Matla undhiya should not be confused with regular undhiya, which a mixed vegetable, with I guess for lack of better words, pakodas, also a winter fare, since all the required veges are avaialble only in winter.
When I come to India in winter, and since my inlaws are in Gujarat, I always try to have either one of the above. The regular undhiya is a favorite dish of mine.
Hope I was able to explain somewhat....
Ashwinb:
Try Rajwada and the other village setting type of restaurants that are very popular in Ahemdabad, I do not remember the names, but I am sure you know what I am talking about.
What on earth is matla undhiyu?
The results Google throws up seem to be nothing to write home about!