When you say 'tama iri' in the okonomiyaki shops in Kagawa Prefecture, it mostly refers to the modanyaki that includes a pack of Sanuki udon (udon noodles from Kagawa Prefecture).
香川県はお好み焼き屋で「玉入り」と言えばそばではなく、ほぼ讃岐うどんの玉入りのモダン焼きを指す。