User blog comment:GlitterInformer/Smile Pretty Cure!/Glitter Force SDC: Episode 10 (Sub)/@comment-5469588-20181201054439/@comment-37117761-20181201204744

In that episode, Kelsey actually calls it by its name. ("It's called okonomiyaki, but you'll call it dee-licious!").

Also, Kelsey's restaurant is brought up again in the last episode, episode 40 (48 of the original).