Chef Josh Buehler, who takes over for opening chef Jamie Bissonnette at KO Prime (Ken Oringer‘s modern twist on a steakhouse) rounds up all the classics and gives them a twenty first century update on his Retro Sunday menu. Expect traditional renditions of favorites like oysters Rockefeller and shrimp cocktail, as well as refreshed versions of chicken Cordon Bleu (with jambon, gruyere and trumpet mushrooms) and trout almondine (with Marcona almonds, haricots verts and parsley puree). The a la carte menu is available every Sunday night and will change on a regular basis – though the all-you-can-eat prime rib roast (for $24.95 per person) will be a staple on the menu week in and week out. Call KO Prime 617.772.0202 for reservations.