Texas Roadhouse doesn't take reservations, but you can call ahead and have your name put in the list just as if you had walked in the door. Also, they won't seat you until your whole party has arrived, so plan ahead for that as well.
So True, when you call ahead, ask how many people are ahead of you and then will also help gauge your timing for arrival. Just be sure everyone will be there or tell them on arrival other parties aren't showing up.
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