"Happy Thanksgivings from the Faisons!" Jessica Simpson's BFF, 35, captioned the adorable shot, which shows her holding her 3-month-old son in her lap, with Faison seated next to them at a wooden table.
The picture is just the fourth glimpse Cobb has offered of her little bundle of joy. Earlier this month, the first-time mom shared a close-up of her baby son in blue-and-white striped pajamas. And in October, she posted a photo of the tyke in a white knit hat.
"And they say it gets even better," she gushed at the time. "I love my life."
Married since December 2012, Cobb and Faison, 38, welcomed baby Rocco on Aug. 15. (Faison is also dad to four kids from previous relationships.)
"Yesterday @CaCeeCobb and I welcomed the most amazing little boy into our lives! Oh Happy Day!!" Faison tweeted on Friday, Aug. 16. New mom Cobb added: "The happiest day of my life.
MORE ON WONDERWALL: