This St. Patrick’s Day, Panera Bread is serving up a little extra luck with the Pot of Gold, a first-of-its-kind, green bread bowl filled with the bakery-café chain’s signature Mac & Cheese, available in select markets.

Available in limited quantities on March 16 and 17 in the greater St. Louis, Boston, New York City and Chicago markets. Guests in the participating cities will be able to purchase their very own Pot of Gold via the Panera app, web or kiosk in cafe.

Panera fans outside of these markets can still take part in the fun by entering the Panera Pot of Gold Sweepstakes for a chance to win free Panera Mac & Cheese for a year. Just text the word LUCKY to 31261 between March 16-21 to sign up for marketing texts and be entered for a chance to win. In addition, MyPanera members nationwide can enjoy a reward for $2 off any size Mac & Cheese on March 16 and 17.

“This St. Patrick’s Day, we’re serving up a little luck and a lot of comfort with our very own Pot of Gold,” says Mark Shambura, chief marketing officer, Panera Bread. “There's no better way to get through the last few cold days of winter than with our signature Mac & Cheese wrapped in a delicious Bread Bowl. We hope our guests enjoy this festive way to celebrate the holiday Panera style.”