A first-team debut was handed to Trent Alexander-Arnold, while Jack Butland started in goal after missing the win over Nigeria at Wembley.
The right wing-back, the youngest member of England's World Cup squad, looked comfortable in his new surroundings, confident and assured in possession (and when on free-kicks) and alert when defending.
Marcus Rashford insisted England have the "highest expectations" going into the World Cup after comfortably winning their final warm-up game.
While Ruben Loftus-Cheek offered a reminder of his strength on the ball and Henderson delivered good service for the strikers with well-weighted balls from midfield, it was Rashford who made the strongest impression - and not only for his brilliant goal.
The friendly was played just 11 days before the Three Lions' opening World Cup match in Russian Federation against Tunisia.
Real Madrid goalkeeper Navas was completely caught out moments later, though, as Rashford unleashed a powerful drive from 25 yards for his third worldwide goal.
"The 23 are all ready to play, that is the most important thing".
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An actual World Cup contender might have scored twice the amount of goals against Algeria that Portugal did Thursday, with only seven of their 18 shots finding the target.
Ten minutes into the second half, Harry Maguire was unlucky not to double the lead for the hosts after his header was cleared off the line by Bryan Oviedo.
Guedes, with nine appearances and one goal before Thursday, fired Portugal in the front in the 17th minute after William Carvalho hit a long ball over the Algeria defence and the lively Bernando Silva cushioned a header invitingly into his path.
"There are definitely places up for grabs for the first game of the tournament", he said. I feel like we're in good physical form.
Costa Rica face tournament favourites Brazil as well as Serbia and Switzerland in Group E, and will need to show far more ambition once they get to Russian Federation if they are to replicate their heroics of four years ago.
"We've done stuff at Canalside pre-match as well as when the players come off the bus, particularly the executioner's drumroll when the opposition team arrive and get off their coach!"
The 20-year-old was a part of the side that disappointed at the 2016 European Championship and he hopes the pain of that tournament will inspire England at the World Cup.
"We could go through 11 of those on the basis of what we saw tonight - and that's critical because we won't progress on 11 players chosen in the first game".
Costa Rica get their World Cup E campaign under way against Serbia on June 17 in Samara.