From Idli sambar to different kinds of dosas, uttapams, etc., Raj Cottage is priced reasonably. We've been there a couple of times, and have noticed that the quality of food has improved as compared to a year back, when the place didn't even have a clean menu card.
Raj Cottage serves lunch and dinner as well - Indian food with rotis, kulchas which is decent but not as delicious as the breakfast. The cost of a normal Indian dish like Veg Makhanwala or Paneer Mutter range from Rs 90 onwards, they also have some interesting dishes like Cheese Angoori or Paneer Pasanda.
A must try would be Shri icecream, a Gujarat-based company, which has an outlet right outside the restaurant. All the flavours cost Rs 30, and is a good desert to have after a heavy meal - we prefer butterscotch and black currant. Although we mostly visit Raj Cottage for breakfast, overall its among the few choices of decent restaurants present in Karjat.