It was a timely boost for the talented midfielder, who was sidelined for much of last season with tendonitis in both knees.
First team involvement must have seemed a long way off for the England under-20 player during those frustrating months, so to feature in game one of the pre-season campaign and put down his marker in such a way by scoring our opener hopefully signals a progressive season for the former Academy boy.
"It was good to be involved, even though it was only a half - but most people get a half in the first pre-season games," said Johnnie.
"It was nice to do pretty well and score a goal, obviously.
"It's good for me, especially playing against a team like Stevenage. They are a Conference team and it was a packed stadium, there was probably a few thousand people there and it was a good atmosphere.
"There was a lot of Tottenham fans, so they get to know a bit about you."
Johnnie believes that the gate at Broadhall Way is probably the biggest he's played in front of and he was glad of the chance to perform in front of supporters who may have only read his name in the past.
"I've been on the bench a few times, but actually getting to play in front of that sort of crowd is up there with the biggest for me. I've played for England in front of a few big crowds, but nothing really.
"It's nice to get involved in the first team so the supporters can see me for themselves."
Johnnie's goal was the pick of the bunch on Sunday, superb Acimovic pass set him off down the left and, when the keeper advanced, he lofted the ball over his head and into the bottom left corner of the net.
"The keeper made it a little bit easier for me by coming out so I thought I would lob it over him.
"It was a nice ball through from Milo and it sat up nicely so I thought I'd have a go. Some of the boys said it looked good on telly but I haven't seen it myself."
Johnnie says his next aim is to remain with the first team squad for the pre-season programme.
"Stay involved for the pre-season and hopefully try and impress. If you have a good pre-season then hopefully you can get in the manager's plans for the season."
Johnnie Jackson said it was good to be able to introduce himself to a bumper crowd at Stevenage on Sunday with a goal.