Leave it to Bruno Mars to get extra “cheesy” with his girlfriend!

One week after he wowed the Super Bowl audience with his incredible halftime show, the “Locked Out of Heaven” crooner was spotted noshing on pizza with his leading lady, Jessica Caban.

“He treated her to a low-key date at Mulberry Street Pizza of Beverly Hills on Feb. 10,” an eyewitness tells Life & Style.

Bruno Mars Celebrates Super Bowl Halftime Show Gig at Dinner With Girlfriend

“He took the lead in ordering and requested a mushroom and pepper pie – he even bought a bottle of the restaurant’s hot oil, so he could pour it on his own pizza at home!”

The duo may have had their eyes on the saucy and yummy prize, but they also had their eyes on each other.

“They looked so happy and adorable together,” the onlooker shares. “They make such a cute couple.

“Despite all of his success, he’s still so down-to-earth!”

It’s no surprise the 28-year-old entertainer went for some Italian fare.

As Life & Style revealed, Bruno was surprised when an extra-large Domino’s pizza box appeared at the doorstep of his Hollywood Hills home in September.

When he opened the box, he found his 2011 Grammy for Best Male Pop Vocal Performance inside!

“Pizza places give tickets away for his concerts all the time, so he thought maybe someone had sent him a free pizza,” a source tells Life & Style.

Bruno Mars Receives His Grammy Award in a Domino's Pizza Box

“He was really happy to finally have his Grammy because he worked so hard for it, but it also left him hungry for pizza!”

Speaking of the Grammys, the singer finally confirmed he was dating 31-year-old model Jessica when he thanked his brothers, dad, mother and “Jessica” during his acceptance speech [watch below] in January.

They’ve been linked since 2011.