Really there's nothing better than going to the Opera house dolled up, see a good performance and appreciate the ridiculous amount of money that went into its restoration. (The Symphony is also gorgeous -- but for as much as I love classical, and that tickets are cheap if you're under 40, I can't get through performances without falling asleep.) Doing that plus someplace near like Yvonne's for dinner/drinks like someone else mentioned, plus treating yourselves to a nicer Uber home, sounds like a fantastic evening.