Qdoba may have grown to include more than 500 stores in 15 years, but the burrito chain isn’t just getting comfortable with its existing model as it pushes forward with strategic growth.

In fact, the company is already rolling out a new store prototype, an upgrade that follows the menu shakeup Qdoba launched in January with its Craft 2 option of smaller portion sizes, according to a story on QSR.magazine.com.

“As a chain you’re always trying to reevaluate yourself and how relevant you are with the consumer and the guest, and we really realized that we needed to update things and get a warmer feel,” says Ted Stoner, director of strategic product development at Qdoba.

Click here for original story, including a video tour of new store prototype.