Yeend made her Metropolitan Opera debut on February 13, 1961 as Chrysothemis in Strauss's "Elektra" in 1961 with Inge Borkh in the title role and Joseph Rosenstock conducting. She also portrayed Violetta at the Met in performances opposite both George Shirley and Charles Anthony in the role of Alfredo. Her last performance with the company was on December 4, 1963 as Gutrune in Wagner's "Götterdämmerung" with Birgit Nilsson as Brünnhilde, Hans Hopf as Siegfried, and Walter Cassel as Gunther. One of the last opera performances of her career was as Desdemona in Verdi's "Otello" with the Philadelphia Grand Opera Company opposite Mario Del Monaco in the title role in 1964.