Rachel Maltby scored a first-half hat-trick, while Princess Ademiluyi and substitute Jessie Gale were also on target as the Young Lionesses responded impressively after opening their campaign with a 1–1 draw against Canada.
The result moved England to four points from two matches, leaving Lydia Bedford’s side second in Group B behind Brazil on goal difference.
Ademiluyi Starts England's Goal Rush
England made their attacking intentions clear from the opening minutes, with Princess Ademiluyi repeatedly finding space behind the Tanzanian defence.
The pressure paid off in the ninth minute.
Vivienne Lia delivered a dangerous cross towards the back post, where Ademiluyi turned the ball home to give England a deserved 1–0 lead.
Ademiluyi remained a constant threat and was involved again five minutes later when she was brought down inside the penalty area.
Maltby stepped up and calmly converted the resulting penalty into the bottom-left corner to double England's advantage.
Maltby Completes First-Half Hat-Trick
Tanzania briefly threatened to reduce the deficit when Winfrida Gerald broke through on goal, but England goalkeeper Katie Cox reacted quickly to make an important save.
England soon regained control.
Vera Jones was fouled inside the Tanzanian penalty area, giving England another opportunity from the spot. Maltby again made no mistake, firing the penalty into the roof of the net to make it 3–0.
The Aston Villa midfielder completed her hat-trick in first-half stoppage time.
A flowing England move involving nine consecutive passes ended with Lily Dent finding Maltby unmarked at the back post, where she coolly finished to send the Young Lionesses into half-time with a commanding 4–0 lead.
Tanzania Pull One Back
England continued to threaten after the restart, with Ademiluyi striking the underside of the crossbar shortly after the interval.
However, Tanzania found a way back into the contest in the 65th minute.
Diana Mnally's looping cross caused confusion in the England defence and, after Cox initially clawed away an effort, Jamila Mnunduka reacted quickest to fire home the rebound, reducing the deficit to 4–1.
The goal offered Tanzania a brief lift, but England quickly restored their four-goal advantage.
Gale Restores England's Lead
Substitute Jessie Gale completed England's scoring in the 74th minute.
Vivienne Lia continued her excellent afternoon by delivering another dangerous cross, and Gale reacted inside the box to poke the ball home for her first goal of the tournament.
England thought they had added further goals late in the match, but two efforts were ruled out for offside.
The Young Lionesses nevertheless comfortably saw out the remainder of the game to secure a comprehensive 5–1 victory.
Maltby the Standout Performer
Maltby's performance was the defining feature of England's victory.
The midfielder scored three goals before half-time, including two penalties, before being substituted in the 61st minute.
Ademiluyi also impressed in attack, while Lia played a key role in creating England's first and fifth goals.
England's dominance was reflected in the statistics, with the Young Lionesses enjoying 68 per cent possession and registering 14 shots, including 10 on target.
England Face Brazil in Decisive Group Match
England will now turn their attention to their final Group B fixture against Brazil on Friday, 11 September.
Brazil have also started the tournament strongly, defeating Tanzania 4–1 before beating Canada 3–0 to reach six points. England sit on four points after their draw with Canada and victory over Tanzania.
The meeting with Brazil will therefore be crucial in determining the final Group B standings and England's position heading into the Round of 16.
For the Young Lionesses, Tuesday's emphatic victory was exactly the response they needed after their opening draw — and Maltby's hat-trick has put England firmly back in contention for a deep run in Poland.