Hey Ruby, as far as "fast food" goes the Slimedogs only go regularly to Chipotles, which you've already checked out, and Rubios! We went there only about two weeks ago on recomendation and feel it's similiar to Chipotles. Lots of cheap Mexican fast food around here is pretty bad but those two places are good.
They're a chain and they are in your area so you have to check out your namesake.
Actually, Kentucky Fried Chicken should be eaten by every American and Fuddruckers, though not as common, is an ok hamburger joint.
Someone will have to help me out but isn't the In 'n out burger the big burger chain in SF and Blondie's Pizza is pretty big too?