If you haven’t already sampled chef Nick Leahy’s Provençal fare at West Midtown’s new AIX and sister wine bar Tin Tin, consider this an open invitation. AIX recently launched Sunday Suppers ($40 per person), a resplendent three-course menu presented every Sunday evening featuring seasonal dishes as well as a few fan favorites. And it seems Tin Tin has followed suit with Mussel Mondays ($29 per person), where Atlantans can savor all-you-can-eat mussels paired with house-cut frites, lemon aioli and housemade sourdough—plus a choice of four exquisite broths: Dijon and herb marinière; Provençal curry and red wine; bacon; and hot peppers. 956 Brady Ave. NW, 770.838.3501