Everything I've ever had here was incredibly delicious, filling and reasonably priced. You can order a lot for under $10. Normally I get a masala dosa or onion masala dosa when I go. You'll find them a little spicy but not overpowering if you're used to eating mildly spicy things.
I also want to add that the man behind the counter is super helpful and friendly. If you know nothing about south Indian cuisine, if you want to know what's vegan (which is most of the menu), if you want to know how spicy menu items are and ask tons of questions he'll explain everything.