The England U21 international impressed during his spell with the Foxes.
"It's been a great experience for me. I've played every game since I came here in January. It's been tough for me physically but I have learned how to cope with my body and perhaps play against different types of strikers. I think I have definitely improved in my time there and I think I've done very well," he told manutd.com.
"I think it's completely different playing in front of big crowds every week and actually playing for proper points in the league, looking for promotion. We came up against a lot of difficult teams and other teams who play football. It's really good experience handling lots of different types of tactics and other factors which can only help me in the future."