The masala dosa at Woodlands Dish of the Week: Masala dosa Where: Woodlands Most of the Indian food in D.C. tends to be northern Indian food that includes meat-heavy curries. But there are treasures to be found in the vegetarian food of the lesser-known south. One of the signatures of that region is the dosa, a paper-thin crepe that is made of rice flour and lentils. When prepared well, it has a crisp exterior…