Here's the first of likely many entries about Reef Cafe. This is a Lebanese place is a few blocks away from my apartment, and this past semester I've been going there a lot (and that's quite the understatement). Usually I stop by for lunch to grab a sandwich (which means a pita roll up) of some kind, and I think I eat there probably at least two or three times a week. At least. And I haven't gotten sick of it yet... 
spinach pie - $1.50 
baked lamb with rice - $7.99 
lamb with okra - $7.99 Everything at Reef Cafe is homemade. The place is essentially run by a family - there's literally a Lebanese mother in the back cooking everything up. The two brothers work the register and stuff, and once in a while the dad is around. The spinach pies are cheap and delicious, with plenty of steaming hot and tasty spinach goodness inside. Every day, they have a "daily specials" board, which is a rotation of different stuff. The descriptions are simple, but they're damn good.
The baked lamb with rice was great - fork tender lamb with extremely fragrant rice. The rice plates are all served with their wonderful pink turnip pickles and a tangy tomato/cucumber salad. The lamb with okra was also great. I'm usually not a big fan of okra but this stew-like mixture was delicious, warming (it was around 0 degrees outside), and perfect with a plate of rice. Pretty much all of the specials are great, especially the "spinach" - a lamb/spinach stew with lots of lemon and nuts. I have no idea what's in this stuff, but whatever it is I love it...
Often I order the much less photogenic sandwiches. The menu offers all kinds of different stuff. I've tried and loved the chicken shawarma, chicken livers, roasted chicken with potato, lamb shawarma, lamb kebab, soujouk, baked kibby... the list goes on. Each one is unique and delicious. Everything is rolled up in some pita-like bread along with some veggies (tomatoes, onions, sometimes pickles, depending on what you get) and some sauce (somtimes tahini, or a lemon-garlic sauce, depending on what you get) and thrown on a little toaster/grill thing that crisps the outside. Each sandwich is $4.75. This is the best food I've found for a college budget in the area.
Also be sure to try the baklava and the coffee. I've heard they have a great soup too, but haven't tried it because there's always something else I'm craving.
Anyway, this is the last Boston post until I get back there after the new year. I'm doing the holiday thing with the family in Vancouver now. I've got one meal to post from my night in SF, then it's on to Vancouver stuff, which of course never fails to satisfy.