After graduating from Immaculate High School in 2005, she attended Marymount Manhattan College in New York City but dropped out during her first semester.
[4] She has also been featured in a number of Late Night with Jimmy Fallon sketches such as "Jersey Floor" and "Studio 6-Bee".
[7][8] After leaving SNL in 2012, Elliott has made guest appearances on television programs such as 2 Broke Girls, How I Met Your Mother, Happy Endings, and Inside Amy Schumer.
In 2022, Elliott joined the cast of the Hulu comedy-drama The Bear, playing the sister of a troubled chef who returns home to run their late brother's failing restaurant.
In the similarly received second season, Elliott's performance in an expanded role garnered her a nomination at the 81st Golden Globe Awards for Best Supporting Actress – Series, Miniseries or Television Film.
She is the second generation of her family to be hired as a cast member, and her tenure on the show was longer than both her father and grandfather.