All aboard! Rachael Ray hops on Dinner in the Diner, in Chattanooga, TN, a renovated train car and ideal spot for a romantic dinner, on Food Network's $40 a Day.

Rachael Ray visits the Back Inn Cafe, Chattanooga, TN, serving up global cuisine overlooking the Tennessee River, on Food Network's $40 a Day.

On Food Network's $40 a Day, Rachael Ray stops by Lela's Cafe, for fresh baked breads and hand rolled stone-baked pizzas in Ashland, OR.

Since 1923, this family owned and operated restaurant has been serving classic Polish and Eastern European fare. Michael Symon is a fan of the cheese- and potato-filled pierogies, which are bathed in butter and onions. The lunch special comes with five pierogies, a potato, vegetables and a roll.

As Rachael says on $40 a Day, Early Girl Eatery "serves up Southern fare with a gourmet flair." Her trip to North Carolina wasn't complete without Early Girl's locally sourced dishes including the Sauteed Local Mountain Trout topped with pecan butter. Take note -- vegans love the tofu scramble here.

Don't let the Upstate New York address fool you: the Texas-style barbecue here is as authentic as it gets. At Painted Pony, they fire up the smoke pits at dawn, so meat has time to cook nice and slow for a tender and delicious meal. Rachael Ray loves the buffet.

On Manhattan's Upper West Side, find "authentic" Mediterranean dishes and live entertainment every night of the week at this no-cover blues bar. Rachael called the baked vegetarian moussaka "fabulous" and promised "you won’t miss the meat at all."

When Bobby heard about A Salt & Battery's award-winning fish and chips, he immediately called for a throwdown. But chef Mat Arnfield had his British roots to guide him. Today they're using a sustainable Pollock with their classic light batter. Ultimately, these chips were the best catch of the day.

Bobby Flay heads to Good Enough to Eat on the Upper West Side of New York for the ultimate American comfort food, on Food Network's Boy Meets Grill.

On The Best Thing I Ever Ate, Alex hears a calling for Five Points' delectable Yukon Gold Potato Pizza. Come time for the weekend, it's all about brunch. Wake up with the Angry Skillet, a frittata of summer squash. Or stay sweet with tangy Brioche French Toast or Lemon Ricotta Pancakes.

When Rachael craves a big old plate of pasta, she heads to Lupa, a Roman trattoria in Soho. The casual setting ties into its homey plates, like rustic Spaghetti alla Carbonara or the favorite, Ricotta Gnocchi. Diners rave over the newest "Roman-style" late-night menu.

For true New York-style pizza, look no further than America’s first, and some say best, pizzeria in the U.S. Since 1897, Lombardi’s has been winning over New Yorkers like Rachael Ray with their perfect balance of marinara and mozzarella, all atop a thin crust baked in a coal-fired oven.

Originally, Veselka was a small candy store and newsstand, but now it is a full-fledged Ukrainian-American restaurant. Ted Allen loves the borscht for its meaty, sweet and tangy flavors. Served warm, the hearty beet soup has an assortment of vegetables bringing depth and body to the dish.

As a pioneer of the urban barbecue scene, Chef Kenny Callaghan has created the most finger-licking barbecue right in a potato chip. On The Best Thing I Ever Ate, Susan Feniger raves about his chips, perfectly matched with blue cheese and bacon dip. It's a great start to scrumptious pit barbecue.

If the decor doesn't evoke memories of yesteryear, maybe the signature Icebox Cake with whipped cream and chocolate wafer cookies will. Or, like Bobby on Boy Meets Grill, snag a vanilla cupcake after buying a pecan pie. Who could blame you? Billy's has become one of New York's sweetest sensations.