Momento Cantina is a Mexican restaurant that gives Chicago, United States a clear reason to appear on a dining shortlist. The draw is flavor, texture and regional character; at a price point not clearly listed in the source data, it should be judged as a considered meal rather than a default booking. It is most compelling for diners seeking flavor, texture and a point of view rooted in cuisine rather than decor alone, especially if the night calls for something more considered than a safe default.