A married FrontBurnervian has another suggestion:
We did our rehearsal dinner in the party room at Ozon’a. The cost wasn’t too bad, and they were pretty easy to work with. But this was two years ago, before their recent customer service gaffes…
Let’s assume they’ve worked those out. Another suggestion:
10 years ago, my sweet wonderful wife-to-be and I held our rehearsal dinner at La Calle Doce (original location) in Oak Cliff. It was awesome. Plus, nothing quite says “Welcome to Dallas” like a dinner at La Calle Doce and giant margaritas and beers that are bigger than your head.