The reserve team boss was pleased with Pacheco's performance in last night's 3-1 win over Bolton.
"Dani looked fantastic for us," McMahon told the club's official website.
"He was lively, always wanting the ball and caused numerous problems for Bolton all night.
"It was nice to get the win and I thought we deserved the three points. I said I quite liked playing at Prenton Park so let's hope our winning run here continues.
"It wasn't a surprise to see Bruna score our first goal from a free-kick. He practices taking them four hours a day at Melwood and the lad has got quality.
"Jordy's goal was a great example of putting pressure on the defence and being in the right place to get the rewards.
"It was nice for Alex to get on the pitch and score. It was his first game for us so that will give him a lot of confidence.
"There was a lot of pleasing things about our performance and I thought the tempo was good. As staff we still want more from the boys and there are things we can do better so we will keep working."
"Dani looked fantastic for us," McMahon told the club's official website.
"He was lively, always wanting the ball and caused numerous problems for Bolton all night.
"It was nice to get the win and I thought we deserved the three points. I said I quite liked playing at Prenton Park so let's hope our winning run here continues.
"It wasn't a surprise to see Bruna score our first goal from a free-kick. He practices taking them four hours a day at Melwood and the lad has got quality.
"Jordy's goal was a great example of putting pressure on the defence and being in the right place to get the rewards.
"It was nice for Alex to get on the pitch and score. It was his first game for us so that will give him a lot of confidence.
"There was a lot of pleasing things about our performance and I thought the tempo was good. As staff we still want more from the boys and there are things we can do better so we will keep working."