*edit:* My parents got this at either Vons or Save Mart.
Ohhh my goodness. I found it! Well, technically my parents found it...but we'd been looking for the green tea ice cream Japanese restaurants sell. I'm not sure if this is the same exact one, and maybe each restaurant sells a different kind, but this tastes just like all of the restaurants' green tea ice creams to me! And who cares if it's the same? It tastes wonderful. My mom and I agreed that we could each eat a whole little carton in one sitting. Dangerous.