Historical clue formulations

• Frequent filler for a po' boy — 2025-02-26
• ___ Rockefeller — 2019-02-14
• Bar order that's not drunk — 2015-03-29
• Bar offerings — 2005-11-18
• Dish sometimes served "on the half-shell" — 2004-04-19
• Chesapeake Bay products — 2003-02-01
• Supposed aphrodisiacs — 1996-08-04