Large groups love Tres Agaves.  This spacious restaurant is lively and fun to dine at.  Their signature margarita pitcher runs for about $24 bucks and the chips, salsa and guac are to die for.  This is a trendy spot so the prices are a bit inflated for the quality of the food, in my opinion, but the food is delicious.  Tres really accommodates for crowds, I highly recommend this restaurant for parties.