Jamie-Lynn Sigler Cutter Dykstra

Can you believe that Jamie-Lynn Sigler just had a baby?

The actress is back in shape a mere three weeks after giving birth to son Beau Kyle. She showed off her unbelievable post-baby body in grey skinny jeans and a flirty polka dot top, which she paired with a long cardigan, while leaving dinner with fiance Cutter Dykstra on Friday in West Hollywood. The former Sopranos star was fresh-faced, beautiful, and still glowing during her date at Cafe Med.

With her new film, Jonah & The Whale currently in pre-production, the star must be hitting the gym hard to get ready for the role. Or she's just genetically gifted ...