Sources tell TMZ Sports ... the former Baltimore Ravens star organized a day-long celebration for Janay ... with a dinner party, private celebrity chef, fancy cake and a special appearance by a former teammate.
The chef is former "Hell's Kitchen" competitor JR Robinson -- who cooked up lobster, lamb chops, mussels and some special dessert for Janay's family and friends.
Among the friends ... Ravens wide receiver Torrey Smith -- whose family has remained extremely tight with the Rice's over the past year.
After the party was over, Janay put a message on social media thanking Ray -- "I literally have the best husband in the world. He went above and beyond to make my birthday special."
As for how Ray paid for everything, he reportedly just settled a grievance with the Ravens in which he wanted more than $3.5 million for cutting him over the elevator video.
No word on how much cash Rice ultimately received in the settlement -- but we're guessing it covered the party.