LUNCH MENUS Senior Citizens Dining Menu The senior citizens dining menu will be served at the following sites: Mayville: Senior Center. Monday-Friday at 11:30 a.m. Phone 3877911 from 11 a.m.-1 p.m. only, all other times phone 1-800-924-6407 for meal reservations. Horicon: Activity Room at Horicon City Hall (second floor). Monday through Friday at 11:30 a.m. Phone 3863580 for meal reservations.