Stewart was 18-of-23 passing for 222 yards and threw all three of his scores to Brad Rozner, who finished with eight catches for 130 yards. Walter had 15 carries that included a 34-yard touchdown run.
Stewart threw TD passes from the 30 and 18, and his 34-yarder with 14 seconds left in the second quarter gave the Owls (1-9, 1-5 Conference USA) a 31-14 halftime lead.
Asher O'Hara threw for 338 yards and two touchdown passes and ran for another score for Middle Tennessee (3-7, 2-4).
The Blue Raiders fumbled the ball away on their first play from scrimmage but made it close with O'Hara's 7-yard touchdown run in the third quarter, and O'Hara's 20-yard touchdown pass to Jimmy Marshall with 3:22 remaining.
On the final drive, Rice converted on third-and-11 and chewed up more than three minutes of clock before punting into the Middle Tennessee end zone with 16 seconds remaining.
Dan Radakovich, who starred at Penn State before coaching career, dies at 84
Dan Radakovich, who starred as a linebacker for Penn State and later won two Super Bowls as an assistant with the Pittsburgh Steelers, died Thursday at age 84. A cause of death was not immediately available.
Michigan State hires Jay Johnson as offensive coordinator
Michigan State named Jay Johnson its offensive coordinator and quarterbacks coach on Thursday as new head coach Mel Tucker builds his staff. Johnson filled the same roles for Tucker last season at Colorado.
Michigan apologizes for late doctor's sexual abuse
Another man has come forward to publicly accuse a late University of Michigan physician of sexual abuse decades ago, saying Thursday that he officially complained to the university soon after but that the school did not respond.
Sources: Steve Sarkisian withdraws from Colorado consideration, staying at Alabama
Steve Sarkisian has withdrawn his name from consideration for the Colorado head-coaching job and instead plans to remain at Alabama as offensive coordinator, sources told ESPN.
Pitt basketball, football placed on probation; ex-coach Kevin Stallings dealt show-cause penalty
The NCAA has placed the Pittsburgh basketball and football programs on three years' probation for coaching violations from 2015 to 2018.
East Carolina-Marshall game moved up to remember 1970 tragedy
Marshall and East Carolina will play their opener on Aug. 29 after the NCAA granted a waiver to move the game to "Week Zero" to honor the 50th anniversary of the Marshall plane crash tragedy, which claimed 75 lives.