Casa Publica is a Mexican spot about a block north of Lilia in Williamsburg. So if (when) you encounter a wait at Lilia, you can always come here, grab a seat at the bar, and drink a frozen margarita with a mezcal float . Or even just sit down and have dinner. The food won’t be as good as the stuff at Lilia (that’s asking too much), but the tacos are solid, the scallop aguachile is fresh, and the queso is about as good as a thing of melted cheese should be. They also take their cocktails seriously here, so plan to spend about as much on drinks as you will on food.