The golden hamburgers are called Catering points. You earn them for your Chain by completing Tasks in the weekly Catering Dash events. Every week you'll be competing against other Restaurant Chains in who can collect the most points! Every member in the top 3 chains who participated in the Catering Dash gets amazing rewards. But, even if your Chain did not make it in the top 3, you still get rewards at the end of the Catering Dash for passing milestones.