Olive Garden – Free 20% Off Lunch Coupon August 21, 2012 By Kelli This post may contain affiliate links or sponsored content, read our Disclosure Policy.Free 20% off Olive Garden Lunch Coupon good for the entire table! Valid Monday through Friday until 4pm. Expires on 8/24. Thanks, Mojo Savings! Stay updated on latest Freebies, deals, and scams “Like” Freebie Finding Mom on Facebook!