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 8pm ET 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.