I have become very attached to Chetna's YouTube Channel, and she has taught me some basic Indian cooking techniques.
This is her filling for masala dosa, which I have made a few times on the tawa I purchased. The dosas are quite a potchke, but the potatoes are pretty easy and really good by themselves as a side dish.
2 large potatoes
Oil (she uses safflower)
1 t. mustard seeds
curry leaves (I bought them at an international store)
dried chili (if you have one)
1 t. tumeric
1 t. salt
1-2 large onions, diced
Boil the potatoes. Let them cool. Peel and dice.
In a deep fry pan, heat the oil. Throw in the mustard seeds, chili, and curry leaves and let sizzle for a minute. Add the onions and spices and cook until soft. Add the diced potates, stir (they will turn a beautiful yellow from the tumeric) and heat through, about 5 minutes. These are filling and delicious.