Hilary and Mike enjoy a cosy family outing with son Luca to the Farmer's Market

Hilary Duff and Mike Comrie separated six months ago, but it sure seemed like the good old days on Thursday.

The couple was the picture of domestic bliss as they visited the popular Sunset Strip Farmers Market in Los Angeles, known for its artisan food, crafts and entertainment, with their two-year-old son Luca.

Hilary beamed a mega-watt smile as she strolled alongside Mike while cradling their little boy in her arms, the late afternoon sun fading behind the trees.

The former Lizzie McGuire star went casual in ripped black jeans, a charcoal sweat shirt, taupe ankle boots and a brown felt fedora, and although the ensemble was a bit mismatched colour-wise Hilary had the fortitude to pull it off.

The threesome posed for selfies and bought some tasty snacks that they ate right there in the open-space venue where the newly buff Comrie also managed to pick up a large rock.

Mike, 33, entertained his son by lifting up the stone, displaying sculpted biceps all the while beneath a white T-shirt paired with black jeans and black shoes.