"Obviously, it's a dream come true," Gomes told MUTV. "I've been here since the age of six, working my way up and it's what everyone dreams about.
"I just want to thank the manager for putting me on the bench and playing me today, and all the staff back at the club and everyone who has helped me. I'm from Manchester, Salford and it's literally down the road. It's just unbelievable."
Gomes, the England Under-17 captain, became United's youngest debutant since Duncan Edwards in 1953, turning out at the age of 16 years and 263 days.
His landmark day came on the same afternoon Jose Mourinho fielded the Red Devils' youngest starting XI in the Premier League, with an average age of 22 years and 284 days.