The 18-year-old scored twice for England U21s in the 5-1 win over Austria this week.
And Bent wants to see the talented Chelsea winger called up to the senior team.
He told TalkSPORT: "He wasn't getting enough game time in the Premier League, even though he was outstanding in the Europa [League] last season.
"If he's fully fit, he's got to be on that plane to the [European] Championships next summer because he's got a large amount of time now to get back to full fitness.
"He's one of these rare players in this country we've got who can go past people at speed.
"For me, once he's back fully fit, that is going to be a big, big boost to Chelsea Football Club and England as well."