The public market in Emeryville is a great place to grab a quick lunch. They have a wide variety of food - sandwiches, italian, indian, thai, afghan, chinese, vietnamese, japanese etc...you name it and they got it!! You'll never get tired of the place!
You can have great food for under $7. You can either get your food to go or have it right there - they have enough place to sit down...of course it gets pretty crowded around lunch time, but you can still find a place if you wait a few minutes.