Here's the "ghee roast". From left to right, the condiments are a white, coconut chutney, a green, mint chutney, and a nice hot sambar.
The dosa is the Indian equivalent of the French crepe, except it's made from a fermented rice batter. Dosas come plain, or stuffed with a spicy potato called "masala", in which case you order the "masala dosa" in the first place. The humble dosa should be one of the five things that you try before you die.