To celebrate, Outback Steakhouse is partnering with OREO for an OREO Mini Milkshake giveaway. Beginning Wednesday, July 24, customers can visit the OREO Facebook page at 8pET to claim a free OREO Mini Milkshake via an Outback Steakhouse form fill site through July 31. The coupon will be redeemable at most Outback Steakhouse locations nationwide until August 7, 2013.