Prime Rib Mondays at Seaport Grille. You can get yours on special any Monday for $14.95 after 4pm! October 17, 2017 ~ beauporthospitalitygroup View this post on Instagram Prime Rib Mondays, anyone? You can get yours on special today and any Monday for $14.95 after 4pm! Also, don't forget that 20% of Monday restaurant proceeds from October will be donated to Susan G. Komen for the Cure to support the fight against Breast Cancer. A post shared by Seaport Grille (@seaport_grille) on Oct 16, 2017 at 2:25pm PDT Share this:TwitterFacebookPinterestRedditPrintPocketLinkedInEmailLike this:Like Loading...