Lindsay Lohan may have had the best dinner of her life last night ... Lohan broke bread with Woody Allen at Phillipe in New York!

Lindsay was picked up at the Mercer Hotel by Woody Allen's driver; she wore a spring, pastel blue floral coat with a an off-white silk dress, tights and gray pumps.

Our photographer says Lindsay and Woody were deep in discussion over dinner, for about an hour ... perhaps discussing an upcoming project??? That would be GREAT news for Lindsay, after her career has faltered in recent years, due to her legal troubles. Now she's got Lifetime's Liz and Dick on her slate for this year but a big-screen film with Woody Allen is every actress' dream!

Will Woody be the one to revive Lindsay's career?