On Sunday, the Irish and others will celebrate St. Patrick, a missionary who helped spread Christianity throughout Ireland. People also observe the day to celebrate Irish heritage.

In honor of St. Patrick’s Day, many restaurants will have limited-time deals guests won’t need luck to uncover.

Here are the restaurants Californians can visit to receive limited-time deals in honor of the holiday.

Krispy Kreme: Customers wearing green can receive a free green O’riginal Glazed doughnut at participating locations. The doughnut chain is also offering a St. Patrick’s Day Doughnut Collection that includes four doughnuts: Luck of the Rainbow, Shamrock Cookie N’ Kreme, Plaid Party, and Shooting Shamrock.

Applebee’s: The restaurant chain will offer $5 Tipsy Leprechaun and the $7 Pot O’ Gold Daq-A-Rita at participating locations.

Jack in the Box: Customers can receive a free Oreo Cookie Mint Shake on St. Patrick’s Day. The company will also be “creating a technological miracle” when a real rainbow appears over its Tustin location at 14002 Newport Ave.

Dairy Queen: Customers can purchase the new Mint Brownie Blizzard Treat and Under The Rainbow Shake at their nearest DQ location.

Insomnia Cookies: Guests who visit a location wearing green can receive a free cookie on Sunday.

Bar Louie: On St. Patrick’s Day, guests can enjoy $3 green beers, $4 Jameson Sidecars, and $5 Guinness Draughts.