Atún Asada con Salsa de Jitomate CaseraLa Capilla, an elegant restaurant in San Miguel de Allende turns out intriguing nueva cocina dishes and continental dishes as well. For this dish, the tuna was firm, fresh, and perfectly cooked. Tuna is best when cooked until both sides are seared and the inside is still pink and tender. You can cook it longer, but the tuna will be dryer and less flavorful. The tomato sauce can be made ahead and reheated.