The 19-year-old who joined the Whites on loan from Chelsea in January gave a lively demonstration of his ability in what was a positive full 90 minutes for the youngster.
"It was good to get a whole game under my belt," said Kakuta to fulhamfc.com. "It's something I have waited a little while for, so of course, this was very pleasing.
"What wasn't pleasing was the result, it wasn't the best of afternoons for the team. Manchester United are a very good side and they showed why they are at the top of the league today.
"Old Trafford is a great place to make your first start, it's just a shame I couldn't celebrate the occasion with three points.
"I had a few good moments, but I think I could have done better - but the game will have done me a lot of good."