Quarterback Kirk Cousins got out of a third down hole with a 42-yard floater right into wide receiver DeSean Jackson's belly.
The Redskins got on the board first with a 16-yard bootleg pass to tight end Jordan Reed, who dove over the right pylon for the score.
The Redskins get on the board again, this time with an 11-yard pass to wide receiver Jamison Crowder.
Running back Matt Jones kicks off his big day with a 20-yard run up the left side for a first down.
Jones followed that up with a 78-yard screen pass, slicing through some early defenders and then chugging into the end zone.
Chris Thompson got in on the fun, scampering for 38 yards down the left sideline to help set up a field goal.
Cousins continued to torch the Saints and found his favorite target again, hitting Reed for his second score of the day, an 8-yard touchdown pass.
Safety Dashon Goldson continued the onslaught, picking off a Drew Brees batted ball and taking it in for a pick-six score.
To put the icing on the cake, linebacker Perry Riley Jr. made an incredible interception falling backward late in the fourth quarter.