Filling up on the cheap is simple in LA. There are plenty of Japanese noodle and sushi bars, Italian pasta places, Mexican burrito stands and Chinese restaurants offering tasty food at a budget price.
Traditional diners serving an array of American staples such as burgers, steaks, ribs and fries keep a relatively low profile in health conscious LA, but they are around. You just have to look.
More expensive restaurants often boasting a chic celebrity clientele are located in the well to-do areas of Santa Monica and Beverly Hills. Make sure you call ahead and make a reservation as some places are often booked up months in advance.
Do remember that all restaurants and bars in LA are non-smoking.