They make a Haute Matzoh Ball soup here that is pretty tasty, even thought its a tad 'refined'. That said, I could eat 3 bowls of it.
Lentil soup here is usually very tasty - especially if you add a little hot sauce and fresh lemon. Inexpensive yummyness. (*not always consistent in flavor.. but 8/10 times it has hit the spot.)
Most of their soups are good here, and change daily, but keep an eye out for the 5 bean chili, or the yellow split pea.
