tujague's is a good idea. i had a big group dinner the other night at la boca. everything was superb, from the appetizers to the steaks to the wine to the service. 15 might be pushing it (we had 12), but it wouldn't hurt to give them a call. the group menu is on their website:
we did the 50/person option, which didn't include alcohol.
I was at a rehearsal dinner at Tujague's last night. Everything was very good.
Shrimp remoulade - fairly spicy, less mayonnaise-y than most remolaudes
Brisket with horseradish sauce
Redfish with crabmeat dressing
I had the redfish and it was fine. The dressing was the best part.
If you choose Tujague's, be sure go a little early and hang out in the bar, or stay after. Also, it wouldn't probably be an issue for the bachelors, but the stairwell to the upstairs dining room is very steep and twisty.