McMahon completed 20 of 29 passes for 274 yards and four touchdowns with no interceptions. Bradley Rozner finished with three receptions for 101 yards, including TD catches of 13 and 75 yards. Ari Broussard added 71 yards rushing on 17 carries, including a 2-yard touchdown that gave the Owls a 31-0 halftime lead.
Deonta McMahon ripped off a 62-yard touchdown run for McNeese (0-2) on the second play from scrimmage in the second half but Rozner's long TD came just 11 seconds later and Jack Bradley's 17-yard touchdown reception with 9:35 left in the third quarter made it 45-7.
Rice (1-1) scored 23 points off five Cowboys turnovers.