Bella Alten operatic career included six Metropolitan premiere performances – Adele in Die Fledermaus (1905), Gretel in Hänsel und Gretel (1905), Saffi in Der Zigeunerbaron (1906), Olga in Fedora (1906), Columbina in Le Donne Curiose (1912), and Lisetta in L'amore Medico (1914). In November 1905 when she sang Gretel in the premiere Metropolitan performance of Hänsel und Gretel, the composer Engelbert Humperdinck was in the audience. This opera received 11 performances that first season and was selected by Theodore Roosevelt's wife as a benefit for the Legal Aid Society. Alten sang Gretel in this opera every season she was with the Met
Hansel and Gretel (opera) finishes her crown, Hansel fills his basket. Gretel tries to put the crown on Hansel, but, saying that boys do not play with things like these, he puts it on her head instead. He tells her that she looks like the Queen of the Wood, and she says that if that's so, then he should give her a bouquet, too. He offers her the strawberries. They hear a cuckoo calling, and they begin to eat the strawberries. As the basket empties, they fight for the remaining strawberries, and finally, Hansel grabs the basket and dumps the leftovers in his mouth.