Outback Steakhouse Coupon: 15% off Lunch or Dinner! July 25, 2014 by Jennie The links in the post below may be affiliate links. Read the full disclosure.Print Email Outback Steakhouse is out with another nice coupon! Through Sunday, July 27th you can save 15% off your lunch or dinner. There is a limit of one coupon per table, per check. This coupon can be used for both dine-in or take-out!