Date night! Ben Affleck took his wife Jennifer Garner out for a romantic sushi dinner in Brentwood Saturday after her strenuous morning workout

It's always best to work up an appetite.

And that's precisely what Jennifer Garner did on Saturday, having spent her morning at the gym and her evening indulging in sushi with her beloved husband Ben Affleck.

The Hollywood power couple, both 40, were all smiles as they made their way to the Japanese restaurant in Brentwood.

Date night! Ben Affleck took his wife Jennifer Garner out for a romantic sushi dinner in Brentwood Saturday after her strenuous morning workout

The supermom wore a red-striped jumper, blue jeans, and sensible black flats for their night out together.

And the two-time Oscar winner , who was sporting stubble, looked his usual dapper self in a grey jumper, blue jeans, and brown work boots.

Before their date, Ben and Jen stopped by a piano shop on Robertson Boulevard in Beverly Hills.

So in love: The Hollywood power couple, both 40, were all smiles as they made their way to the Japanese restuarant in Brentwood

Hollywood power couple: The two-time Oscar winner - sporting stubble - looked his usual dapper self in a grey jumper, blue jeans, and brown work boots

Getting Violet lessons? Before their date, Ben and Jen stopped by a piano shop on Robertson Boulevard in Beverly Hills

Perhaps they're interested in getting one of their three children - Violet, Seraphina, or Samuel - tickling the ivories sooner than later.

Earlier on Saturday, Jennifer was spotted in Santa Monica was dressed for action in a grey Patagonia zip-up jacket, ankle-length running pants, bright white sneakers.

With her brown locks in a high, no-fuss ponytail, the A-lister looked like she’d conquered her workout for the day.

Caffeine fix: Jennifer Garner carried a cup of Starbucks after a workout in Santa Monica on Saturday

At one point during her walk, she switched from SmartWater to Starbucks – she must have been in need of some caffeine to recharge after prepping her body for rising temperatures and more revealing clothing.

The star has been sporting casual yet classic looks as of late, typically pairing jeans with a simple top and menswear-inspired shoes.

After all the workouts she’s been doing lately, maybe she’ll be ready to bare some more skin and play up her feminine side as spring takes over.

Sporty spice: The actress kept it simple in grey and black but managed to look polished in her workout wear

Essentials in hand: Still looking elegant after some exercise, Jennifer had water and her mobile at the ready

Affleck will next be seen in To the Wonder, a dreamy almost silent drama helmed by reclusive director Terrence Malick, which hits theaters April 12.

Garner will reunite with her Ghosts of Girlfriend’s Past co-star Matthew McConaughey in The Dallas Buyer's Club.

Garner replaced two-time Oscar winner Hilary Swank as Dr. Eve Saks in this year's drama about real-life AIDS victim Ron Woodroof.