Los Angeles — FAT (Fresh. Authentic. Tasty.) Brands Inc. has successfully completed the acquisition of Elevation Burger for $10 million, which was funded through a combination of sellers’ notes and cash. With the acquisition, FAT Brands now franchises more than 400 restaurants around the world with annual system-wide sales exceeding $400 million. Elevation Burger was originally conceived in 2002 by Hans Hess as a healthier burger offering. Delivering authentic, sustainably prepared food, Elevation Burger offers grass-fed, free-range options that are better for consumers and for the environment. Elevation Burger franchises …