Restaurant near the Houstonian
Philippe is a great French with a Texas twist. The Houstonian is close to the Post Oak/Galleria/Uptown area. Here's some suggestions.
TexMex - Sylvia's Enchilda Kichen on Woodway
Steakhouse - Papa's on Westheimer
Brazilian Steakhouse - Chama Gaucha on Westheimer
Delicatessan - Kenny & Ziggy's on Post Oak
Continental - Masraff's on Post Oak