Celebrate Memorial Day Weekend by bringing the grill experience home with Mastro’s Butcher Block To-Go.. Indulge in perfectly aged cryo-vac sealed steaks, aged for 28 days and accompanied by Mastro’s exclusive house steak rub. You can conveniently pick up your order at either the Beverly Hills or Downtown Los Angeles location. If you prefer dining in, Mastro’s has enticing specials for you to savor, such as the limited-time Blueberry Lemon Buttercake and Caviar Twice Baked Potato, a Don’t miss out on the exclusive cocktail specials like the Bee Sting and a Belle Glos wine flight , available only until May 31.