While Ron's is certainly thriving, the burgers, though quite good, just aren't the same. Thankfully, the crown has been passed to Claud's. Drive down Peoria past the glitzy part to a neighborhood of cleaners and tire repair shops and you'll see a small white building just like the mom and pop roadside diners described 70 years ago in chapter 15 of Grapes of Wrath. Inside, little has changed since the day it opened. More