Atlanta: Holeman & Finch Signature Burger: Burger (two cheeseburgers on a house-made bun). Star chef Linton Hopkins announces "burger time"--10 p.m.--with the ringing of two bull horns; that's when two dozen grass-fed beef burgers are up for grabs and consistently sold out within minutes. The burgers are also available on the Sunday brunch menu.
San Francisco, CA: Zuni Café. Instead of traditional cucumber pickles, legendary chef-owner Judy Rodgers accents her burgers with thin-cut zucchini strips pickled in apple cider vinegar, mustard seeds and turmeric
Signature Burger: Ranch Burger (topped with mushrooms, onions, green chiles, and choice of cheddar or provolone cheese). Self-taught cowboy cook Tom Perini masters the art of open-flame cooking using mesquite coals at his hay barn turned steakhouse, smack in the middle of the state. www.periniranch.com
Frita Batidos - a Cuban-inspired eatery in downtown Ann Arbor that serves Cuban-style street food. This is a beef frita (burger topped with shoestring fries and a sunny side up egg) and coconut ginger rice.
Philadelphia: Osteria Signature Item: Lombarda pie (with baked egg, Cotechino sausage, mozzarella and bitto cheese, made from a blend of cow's milk and goat's milk). The phenomenal pizzas at star chef Marc Vetri's casual spot are fired in an oak-burning stone oven.