The second-quarter scoring outburst was a tribute to the depth of the Dallas offense.
The Cowboys' first score was a 1-yard toss to rookie tight end John Phillips, his first NFL touchdown.
Phillips is technically the Cowboys' third tight end, but he has found a role while second-stringer Martellus Bennett struggles. Phillips had five of his seven catches in the regular season during the Cowboys' three-game winning streak at the end.
The Cowboys' second touchdown was scored by another third-stringer, running back Tashard Choice.
Starting running back Marion Barber left the game after three carries in the first quarter, apparently still slowed by a sore knee that caused him to miss a practice last week.
Choice took over Barber's role and dove into end zone from a yard out to give the Cowboys a 14-7 lead. It was Choice's first touchdown since the Week 9 win over the Eagles.
Miles Austin scored the Cowboy's third touchdown on a bubble screen from 6 yards out. Austin began the year as the third receiver, until his breakout game against Kansas City while substituting for an injured Roy Williams.
Kicker Shaun Suisham, playing in just his third game with the Cowboys, kicked two field goals during the onslaught. The second, with just two seconds remaining in the half, was an impressive 48-yarder.
The Cowboys' offense practically owned the second half, holding the ball for nearly 23 minutes to the Eagles' seven.
But the way the Cowboys stumbled in the early going, it looked as if time of possession would be irrelevant.
Dallas took the opening kickoff and committed a false start on the first play. However, the Cowboys moved inside the Eagles' 20 in eight plays, only to see tight end Jason Witten flagged for illegal motion.
Two plays later, the normally trustworthy Witten picked up his second penalty, an interference call, to wipe out a 16-yard pass to Kevin Ogletree to the 1-yard line.
Quarterback Tony Romo was sacked on the next play, pushing the Cowboys out of field-goal range. Romo's third-and-32 pass to Witten was too high, and the Cowboys were forced to punt.
The Cowboys' next possession started with a 20-yard gain by Felix Jones, but it, too, was scuttled by a sack. Dallas wound up punting from the Eagles' 34.
After finally getting on the board early in the second quarter, the Cowboys had another shaky possession. The first play was a wobbly Romo pass that Sean Jones appeared to intercept. A replay challenge showed that the ball had hit the turf, and the Cowboys retained possession.
Three plays later, Eagles defensive end Chris Clemons appeared to scoop up a Romo fumble, but replays confirmed it was an incomplete pass.
From then on, the Cowboys found a clear path to the end zone - and to their first playoff win since 1996.
