Misión 19 offers a very different sort of Mexican cuisine from that to which we are accustomed on this side of the border. It is refined, but also unmistakably Mexican and unquestionably Baja. Entradas include a scallop parfait with candied lemon, avocado meringue, and chiltepin chilies, roast beef marrow served with tortillas, and foie gras with caramelized black olive. Larger plates include poached quail risotto, pork belly with banana and sautéed chard, and seared tuna.