Every Thursday Park 52 offers $5 martinis. Since you probably shouldn’t drink alone, and should probably eat when drinking with friends, they offer two for one appetizers. These include spinach artichoke dip, filet sliders, and steamed mussels. (The appetizer deal is good from 5 to 7pm, Wed – Sat.)
Park 52 is a gorgeous restaurant in Hyde Park, and I can personally recommend it! They hosted a Chef’s Table event in March and were incredible hosts.