The throwback showed a younger-looking Lucy gazing at the camera as she tucked into her dinner.
Sporting her signature blonde locks in a sweet bob, the fresh-faced youngster was worlds away from her glamorous older self.
Donning a pink long-sleeved T-shirt and a yellow apron, the cobbles actress was pictured grinning for the camera.
Beside the upload, the stunner wrote: “I am still always this happy when I’m eating”.
Fans soon inundated the actress with compliments, with one penning: “Aww, this is such a lovely baby photo Lucy!”
The cute picture came as she retweeted another adorable throwback snap, which seemed to show a young Lucy enjoying a cuddle with a fellow tot.
Teaming the bold look with a plunging black top, the bombshell gazed at the camera as she posed on the red carpet.
And, later in the night, the star’s perky cleavage was on full display as she treated social media followers to a stunning close-up shot.
Grinning beside pop trio Haim, the Weatherfield favourite’s eye-popping assets couldn’t be missed as she took a selfie from above.
Coronation Street continues tonight at 7.30pm on ITV.