Dustin Brown scored twice and former San Jose forward Marco Sturm also scored in the third as the Kings broke open a close game to snap a three-game losing streak to San Jose. Anze Kopitar had three assists.
The Sharks took more than 12 minutes to put a single shot on net and had few good chances all night, with perhaps the best coming on Patrick Marleau's shorthanded breakaway that Quick stopped midway through the third.
"I didn't expect us to be perfect, but I expected us to be a lot more competitive and I expected us to stick to more of a team-type game," Sharks coach Todd McLellan said. "We turned into individuals when it didn't go our way and they picked us apart."
The Kings were already solidly in control by then, on the way to their ninth win in 12 games. They used another big third period to prolong this run, having outscored the opposition 16-4 in the third during this span.
After being stymied through two periods by Antti Niemi, the Kings finally broke through with their four goals in the third to complete a back-to-back sweep of their California rivals after beating Anaheim at home Sunday.
"We were peppering him all night," Brown said. "He was making some big saves through traffic. When you get that many shots and you're testing a goalie that often, when we got that first goal, maybe it broke his will a little bit."
The first goal was started by Brad Richardson, who had the puck near the boards when Jamie McGinn came in and tried to knock it loose. Richardson came out of a collision with McGinn and Sharks defender Jason Demers and got the puck in front to Lewis, who lifted it over Niemi to make it 1-0.
Just over a minute later, Sturm came skating into the San Jose zone and sent a soft shot on net that trickled through Niemi's pads to make it 2-0. It was Sturm's first goal in four games with the Kings.
Brown added a rebound about 3 minutes later and scored on a breakaway with 2:00 remaining to seal the victory. Niemi stopped all 30 shots in the first two periods before allowing four goals on seven shots in the third.
"It was that stay-with-it attitude all the way through the 60 minutes," Kings coach Terry Murray said. "I loved the start. I think we had great offensive zone time and lots of puck to the net."
The Kings thoroughly dominated the opening period but were unable to get the puck past Niemi as the game remained scoreless. Niemi, making his second straight start after sitting three games, stopped Wayne Simmonds in alone in front of the net in the opening minute. He later robbed Brown from in close midway through the period and stopped Justin Williams on a 2-on-1.
Los Angeles had the first 10 shots of the game as the Sharks didn't even get a puck on net until Dan Boyle's shot from inside the point more than 12 minutes into the first period.
"I'm just embarrassed," Boyle said. "It was a terrible effort. There were a lot of line changes and faceoffs where things could happen. It was just effort. A lot of us took the night off and against a team as good as that, it can't happen."
Los Angeles had a 15-1 edge in shots at one point before San Jose put some pressure on Quick late in the period. Quick made a tough save against Devin Setoguchi late in the period and then helped kill off a power play that went into the second.
The play was much more even in the second but neither team was able to solve the opposing goalie. Niemi once again had to turn away good scoring chances from the Kings, stopping Lewis in close with the pad and robbing Alec Martinez with a glove save.
"Without him, it could have been 4-0 in the first," McLellan said. "I thought he did a very good job in the first 40 minutes."
Material from wire services and team media was used in this report.
1 - 0 LAK
2 - 0 LAK
3 - 0 LAK
4 - 0 LAK