The second leg, merely a formality, takes place at the Pirelli Stadium on Wednesday, 23 January, with the final at Wembley Stadium on Sunday, 24 February.
"I don't think we could've done too much more with the quality that is out there", he said.
City won the first-leg of the tie 9-0.
He added: "Of course we will play some of the second team and players who don't play regularly [in the return leg], but in this incredible schedule we have a little bit of a break in that week to prepare for the other competitions". "The best way is do what we have to do".
"I take the cups seriously".
Premier League champions City are second in the league, four points behind leaders Liverpool and 12 ahead of sixth-placed United. He revealed that they will be going home next week after visiting him over Christmas, but the striker insists he is better equipped mentally now to being without them. "It's the best way to respect the competition and respect the opponents", the City boss told reporters.
"Some have followed the club for 40, 50, 60 years or more and never dreamt of being in a League Cup semi-final so let's enjoy it".
Eagles’ Jake Elliott speaks on Bears’ Cody Parkey
No one really seemed to be aware that the kick had been tipped until Hester causally mentioned it during his postgame interview.
"We didn't expect anything less with the gulf between the two teams, we thought it could have been more". It's an honour for me personally to play against a Clough.
It was also the first time City had scored at least eight goals in a single match since November 1987, when they beat Huddersfield Town 10-1 in a league game. The Reds reached the final but lost to Arsenal.
Through 210 fixtures the Premier League's goals per game average stands at 2.85, the highest since 1967-68 (3.02), despite teams shooting less and a decrease in errors leading to goals.
But City fell foul of League One opposition last season when Wigan knocked them out of the FA Cup so Guardiola knows not to be complacent.
Jesus has only scored three goals in 16 Premier League appearances this season but the 21-year-old feels he is bouncing back from a period of poor form after underachieving at last year's World Cup.