If you want something substantial and cheap for lunch then Chen's is your spot.  I had lunch here last week.  The $5.50 lunch special.  Came with a side salad.  Actually strips of lettuce with ranch dressing.  A cup of egg drop soup, which was actually delicious.  Then all the main dishes come with rice, crab angel, and an egg roll.  Also a drink.  I had the Moo Goo Gai Pan.  Not the best I've ever had but pretty solid.  This won't be my go to place for lunch but with meal, tax, and tip I only spent $9.50 so that's one hell of a deal.