Cal. Gov. Code § 25537.5
In any county the board of supervisors may prescribe by order a procedure alternative to that required by Sections 25526 to 25535 of this article for entering into leases, concessions or managerial contracts involving leasing or subleasing all or any part of county-owned, leased or managed property devoted to or held for ultimate use for cafeterias for employees. Any alternative procedure so prescribed shall require that the board of supervisors advertise for bids for the proposed lease, concession or managerial contract in a newspaper of general circulation published in the county in the manner provided in Section 6063. The board of supervisors in making the award shall take into consideration the price bid and the ability of the bidder to supply attractively prepared wholesome food to employees at prices within the employees ability to pay. The board may reject all bids.
Ca. Gov. Code § 25537.5