Voted #1 STEAKHOUSE by Zagat and Best of Philly The Prime Rib offers the finest in American steakhouse cuisine in a classic 1940’s Manhattan supper club ambiance. Jazz nightly. Business casual, no jacket required. $45 three course menu with choices offered 4:30-6p.m. . Civilized Happy Hour Mon-Thur with special drink and bites menu 5-7p.m. Dinner 7 nights a week .