Can't believe no one has mentioned Raising Cane's Chicken Fingers. IMO they have the best chicken fingers, their secret "Cane's Sauce" is great, and the sides (slaw, fries, and Texas toast) are good too. Started in Baton Rouge (I think) and it's spreading throughout the Deep South. Wish they would expand up North.

Here in MSN Tex Tubb's Taco Palace just opened a second location, so I guess that makes it a chain. Great tacos in general and it's one of the few places in town where you can get decent fish tacos.

A note about Cattlemen's Steakhouse in OKC. I highly doubt it's part of the chain someone else mentioned in California. the Cattlemen's in OKC has been there (possible started as Cattlemen's Cafe...?) ever since the downtown was the center of the cattle trade and full of stockyards. It's also listed in the 1000 Places to See Before You Die book, and I doubt it would include a chain restaurant. Not sure if there is more than one location in OKC, though--I've only eaten at the original.