The deal gives franchisees of both restaurants the chance to co-brand and offer a menu that includes products from both concepts.
The agreement covers both existing and new locations, with co-branded stores displaying signage for both concepts.
The first co-branded store opened in Richardson, Texas, last month, with a second due to open in Fort Worth, Texas, in the coming weeks.
"The economic model of the same retail space offering two brands and two menus to loyal customers will be extremely attractive to potential franchisees," said Ziad Dalal, founder and president of Crest Foods. "It enables them to lease better spaces and is designed to deliver better revenues all day long and all year round.