Southern California - the birthplace of famous hamburgers from McDonalds to Carls Jr. and In-n-Out Burger - is home to another thriving burger chain that opened its first outlet in 1952. Lovie Yancey thought of the perfect name for the 1/3 pound burgers she sold at her Los Angeles burger joint: Fatburger. Now with over 41 units in California, Nevada, and moving into Washington and Arizona, Fatburger has become the food critics favorite, winning "best burger in town" honors with regularity. the secret is the seasoned salt used on a big ol lean beef patty. And there's no ketchup on the stock version , just mayo, mustard, and relish. Replace the ground beef with ground turkey and youve got Fatburgers Turkeyburger all up and cloned.