Possible Clues:

• Bride in 'The Mikado' - appreciation of food
• Expression of pleasant anticipation of food
• Exclamation of pleasure at eating, from heroine of The Mikado
• You may underperform, portrayed as heartless operatic heroine
• Mikado heroine
• Nanki-Poo's love; delicious!
• Expression of delight, especially of delicious food
• Expression of delight from Ko-Ko's ward
• Maiden in The Mikado
• Character in The Mikado; nice food!