Masale (palya):

1. Heat oil in a heavy bottomed pan; temper with mustard seeds, curry leaves, dal mixture, haldi, ginger and green chilies.
2. Add sliced onions and fry until done.
3. Add mashed potatoes, salt and mix well; remove from stove.
4. Add lime juice, cilantro and mix well; keep aside.

Red Chutney:

1. Dry roast chana dal, urad dal and red chilies until you smell the fresh aroma of spices.
2. Grind with coconut and some water to a smooth paste; Keep aside.

Mysore masale:

1. Make dosa as explained here - Paper Plain Dosa .
2. When the dosa is almost done, smear a spoonful of red chutney on the inside of the dosa.
3. Spread a ladle full of masale on one side of the dosa; Fold the dosa so that the masala and chutney are on the inside.
4. Remove from stove and serve immediately with some Coconut chutney and/or sambhar

Note: Adding half a tsp sugar gets the onions roasted faster.

Courtesy: http://maneadige.blogspot.com/