Selena and Zedd -- Stir Fried Date ... Smells (and Looks) Official

Most people don't fly cross country to take "a friend" out to eat -- so Selena Gomez and Zedd are looking more like an official couple after their afternoon rendezvous in Atlanta.

Our restaurant sources tell TMZ ... Selena and Zedd were hugging and kissing while eating at Benihana Friday. She's in town shooting a movie -- and the only reason he'd be there is, well ... her.

They've been a rumored couple since they hit a bunch of Golden Globes parties together -- but then SG was spotted at dinner with her on/off/on BF Justin Bieber.