Howard had 19 points and nine rebounds in his first game since signing a four-year, $88 million deal with the Rockets in the offseason.
Howard was 6 of 11 from the field and 7 of 11 from the free-throw line in 27 minutes. He also had a technical foul in the third quarter for arguing a defensive 3-second violation.
Morrow was 3 of 6 from 3-point range and 8 of 15 overall from the field in 33 minutes. Anthony Davis added 21 points on 9-of-16 shooting in 27 minutes, and Austin Rivers also had 21 points in 32 minutes.
New Orleans lost guard Tyreke Evans in the second quarter with a left ankle injury. Evans had X-rays on his left ankle, which came back negative, and he did not return.
Evans hit an off-balance jumper in the lane and appeared to land on a defender's foot, rolling his ankle.
Evans, who came to the Pelicans from Sacramento in the offseason as part of a three-team trade that sent Robin Lopez to Portland and Greivis Vasquez to the Kings, had seven points on 3-of-5 shooting in 10 minutes.
Minnesota Timberwolves point guard Ricky Rubio's mother has died after a long battle with lung cancer.
Would David Fizdale be a good hire for the Grizzlies? Will the team keep free agent Mike Conley? Our crew forecasts the future for Memphis.
David Fizdale, an assistant with the Heat, has been offered the head-coaching job with the Grizzlies and the sides are working on a contract, according to ESPN and a report from The Vertical.