After about six years of selling high-priced yoga pants, outgoing lululemon athletica CEO Christine Day has her next project: revamping the frozen-foods section.

On Tuesday, she announced that she’ll take the helm at Luvo, formerly Lyfe Kitchen Retail, a healthy foods start-up backed by Derek Jeter and Jennifer Garner.

“For me, it’s about purpose-led companies … so actually reinventing the frozen-food aisle with healthy food that’s nutrient dense, that’s good for people, that reintroduces people to food they should be eating and love—that’s a mission I can get up for every morning,” she told CNBC’s “Closing Bell.”

In June, Day said that she would leave the yoga apparel marker after a replacement was found. While shifting from yoga to food may seem like a leap, Day is no stranger to America’s eating habits, having spent two decades at Starbucks.

“I really feel like the time is right,” she told CNBC. “This is an industry that’s about to make a huge shift, and I think health and wellness are on everyone’s mind right now.”

—CNBC’s Katie Little. Follow her on Twitter @KatieLittle