Joanna Krupa Packs On PDA with New BF

Joanna Krupa's out with the old and in with the new ... and PDA's in full effect.

The ex-'Real Housewives' star was game to suck face with restauranteur Nico Santucci during dinner Wednesday at Craig's in WeHo. Of course, Joanna just recently separated from her hubby, Romain Zago ... and she's quickly flipped into single lady mode.

Joanna and Nico were seen holding hands and getting cozy while dining with friends.

We got them on their way out ... and she's obviously enjoying her new chapter. Nico, on the other hand, seems to be less showy. He slipped away in a separate car.