As my Foolish colleagues unpack their lunches, including a bag from McDonald's (NYSE: MCD), and the sweet aroma of burgers and fries drifts my way, my thoughts turn to one of the biggest regrets I've had over the past couple of years: not buying McDonald's when it was thoroughly beaten-down a couple years back. It didn't take a genius to realize that a company with this much history of success would eventually figure things out, and when the turnaround came, it was richly rewarding. And you would have done even better had you bet some skin on Sonic's (Nasdaq: SONC) drive-ups and Yum! Brands' (NYSE: YUM) Taco Bell, Pizza Hut, and KFC. So after these run-ups, it's natural to wonder whether the good times are all in the past. Is there any value left at these big chains and peers such as Wendy's (NYSE: WEN) and CKE Restaurants (NYSE: CKR)? After all, most of us drop more than a few bucks in these joints every year. We might as well see whether we can get a little something back for our trouble besides jiggly thighs, no?


















