December 12, 2009 No Comments Free Breakfast On A Bun at Whataburger – Coupon Free Breakfast On A Bun at Whataburger – Coupon Print out the coupon and redeem for a Free Breakfast On A Bun at Whataburger. Valid only on December 12. Breakfast served from 11pm to 11am. Free Breakfast On A Bun at Whataburger – Coupon – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.