Two former couples reunite to compete in a battle of the exes. One team serves traditional New England cuisine, while the other focuses on exotic international food.

Longtime friends serve Southern food, from fried game hen to beignets, at their eatery, while New Jersey natives focus on Jersey diner favorites, including moussaka and cheesecake.

Two Asian eateries go head-to-head in an all-Asian battle. One serves up Thai street food staples, while the other focuses on Vietnamese and Indian comfort foods.

Two sets of twins face off against each other in a twins battle. One pair serve their grandmother's traditional Spanish recipes, while the others put an innovative twist on American comfort food.

Two teams who want to open their own Jewish deli compete to see who has the best deli food.

The second theme restaurant battle is on when two teams open their own theme restaurant, which include a German beer hall, and a gastropub.

Best friends serve authentic fajitas at their Tex-Mex restaurant, while a husband-and-wife team have homemade brisket on the menu of their traditional Texas barbecue joint.

Two modern eateries compete, including one specializing in molecular gastronomy and one with a social conscience.

It's girls (Dana and Nikki from Los Angeles, CA) versus boys (Fred and Marcus from Dallas, TX) in a battle of French bistro (The Famished Lamb) against glunten-free country cuisine (The Citizen).