Semi-formal -- make sure you can break it down on the dance floor in whatever you wear, but please -- no jeans or t-shirts, but also no ball gowns or tuxes. A tasteful cocktail dress for the ladies and a suit for the men would be perfect (no suit jacket necessary!)
Tacos! Come ready to chow down on tacos, burritos, tamales, and/or rice bowls. There's something for everyone's dietary needs too (gluten-free, vegetarian/vegan, and dairy free choices available).
We respectfully ask that kids other than those of immediate family members stay at home -- take advantage of a date night for you, and let your kids chow down on frozen pizza and Hi-C with the babysitter. :)