La Creperie
It's not exactly in Beirut, just 20 minutes far.
If you can, get a seat on the balcony as the view is breathtaking. Set on the cliffs edge overlooking the ATCL marina and Jounieh’s coastline, overshadowed by the Virgin Mary of Harissa; and with the cool gentle breeze rolling off the ocean this is one of the most romantic locations you can find on our crowded coastline.
Meal for two with a half bottle of wine, $45.
La Creperie, Kaslik, Jounieh. 09 930179
Check this website. It has a list of restaurants.
http://www.timeoutbeirut.com/Food