Costco in Concord has finally added cheese burgers to there menu
Actually, quite recently I saw them selling cheeseburgers, not sure if it's a limited time though.
Livermore was a special test location for the burger. There is also a store east of Sacramento that has it, for a limited time
I frequent many of my local Costco stores, frm Concord to Lodi and I have never seen cheeseburgers on the foodcourt menu at any location
Not only barbecue sandwich and chiken sandwich
Why don't you call or email the manager at the food court in Concord and ask him why they don't have cheeseburgers?
Probably, no one has asked.
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