Difficult to pass on with 〜がたい

Grammar Explanation: Difficult to do with 〜がたい

Visiting her new friend’s family’s café, Cocoa ponders over which menu item to order.

ココア:: 「わー抹茶(まっちゃ)パフェもいいし　クリームあんみつ白玉(しらたま)ぜんざいも　捨(す)てがたいなあ」; "Wow, then green tea parfait is good, but the cream anmitsu and dumpling red bean soup are difficult to pass on."