Does anyone remember The Rustic Oak? There is currently another restaurant by the same name in midtown, apparently unrelated. The old one was in a large, late 60s / early 70s era house, in the southern quadrant of the SW freeway/Beltway 8 interchange. I think the address was technically on Thurleigh street at Dover. Thurleigh ran parallel to Keegan's bayou a short way, between Dover and Bedford, but now has the Beltway crossing and covering most of it.
The restaurant was kind of a fancy and expensive place, reservation only, I believe, and had a nice comfortable atmosphere. I had only been two or three times, but I can still taste the filet minon!
I think they closed in the early 2000's... maybe later, not sure. The house is still there and doesn't appear to be abandoned.