Alton Brown revisits a decadent, old-world pasta dish while Ali Khan chats up his favorite chicken parmigiana sandwich. Alex Guarnaschelli then gives a shout out to a not-to-be-missed lasagna and Duff Goldman reveals his pick for the best dish to end a perfect Italian meal.

Martha Stewart's favorite biscuits and country ham are first up in Nashville. Scott Conant then brings a new take on French toast to the table and Jeff Mauro explains why beloved blueberry ricotta pancakes will change the breakfast game as we know it.

Alton Brown shows us his favorite homemade salsa in Columbus, Ohio. Ali Khan then serves up a true Mexican original with beef carnitas tacos in Austin, Texas. Finally, Alex Guarnaschelli's favorite Al Pastor at Lene Brave in Chicago is so good, it has customers begging for more.

Martha Stewart shows off a beautifully perfect brioche she can't get enough of in New York City. Then, find out why Alex Guarnaschelli's favorite lemon bars are simply off-the-charts brilliant! Finally, Tregaye Fraser has a new take on an old classic in Atlanta.

In New York City, Martha Stewart gushes over the most irresistible piece of lemon meringue she's ever had. Simon Majumdar travels all the way to Kentucky for a world-famous avocado dessert. And Chef Antonia Lofaso goes all out with a perfect puffy pastry known as the Napoleon.

Ali Khan makes a beeline for an over-the-top pistachio chicken salad creation in Austin, Texas. In Atlanta, Jernard Wells gets bad to the bone with finger lickin' good ribs, while in New York City, Martha Stewart has a lunchtime special you won't want to miss.

Chef Jonathon Sawyer takes us on a trip to Dayton for a rib-eye cut so incredibly, it's fit for a king. Jernard Wells travels down to Atlanta for the best of both worlds -- the sea and land -- in a surf-and-turf combo of steak and shrimp. And Duff Goldman drools over a butter steak that melts in your mouth ... like butter!

We're joining Chef Beau MacMillan in the cafeteria with his Supreme Boffa super-sub sandwich and heading down to homeroom where Jeff Mauro teaches us all about the best pepperoni pizza creation on the planet. And we're sticking around after class with Tregaye Fraser to learn about her irresistible ricotta cannoli.

We take a trip to Chicago where we meet up with Jeff Mauro to discover all the magic colors hidden inside the Rainbow Cake. We find Monti Carlo over in Seattle cutting right to the middle of a plantain lasagna. And we indulge in every delectable layer of Geoffrey Zakarian's grasshopper dessert.

Alton Brown takes us on a trip to Memphis to honor the original glazed doughnut that started it all. Alex Guarnaschelli goes weak in the knees for an apple doughnut from New York City. And we can't contain our taste buds as Scott Conant shows off all the tropical flavors of a coconut cream-filled delight.

Antonia Lofaso listens to what the people are saying and immediately falls in love with a sourdough cinnamon roll in Los Angeles. Geoffrey Zakarian can barely contain himself as he gushes over the famous meatball and salad -- a dish that truly everyone is having. And Monti Carlo listens to the crowd and indulges in pork belly pastrami.

Alton Brown has his eye -- and his stomach -- set on a genuine creation called the Crab Rangoon Pizza. Jonathon Sawyer says he's found a blast of flavor that's too good to be true in Los Angeles. And Tregaye Fraser attempts the impossible with the most obscure and jaw-dropping dish yet.