The win takes them to within two points of Premier League promotion, with their 27th league win this season - the most in the country - coming off the back of a battle against visitors Wednesday.
Pearson's side has previously showcased their dazzling qualities throughout the season on their charge to Premier League glory, but they were made to work hard before securing all three points with a sublime Anthony Knockaert free-kick.
Speaking to Sky Sports, Pearson said: "The result's great. At this stage of the season and at any stage the result is the most important thing.
"We probably showed that we are human tonight. We didn't quite sparkle the way that we have done in games, but we showed other qualities.
"Towards the end the number of blocks and challenges we put in to keep the ball out of the net is testament to the fact that we're capable of doing what we need to do to win games.
"That was pleasing tonight.
"We made hard work of it, but maybe because we are so close I've got to give the players a bit of lee-way at times.
"We did enough to win the game, and were by far the better side."
"The two goals were very, very good. At the end when we needed to put bodies on the line we had a team of players that were prepared to do that.
"You can't win with sparkling football every time you play, but we had more than enough tonight.
"A very good night's work really."
Leicester's win means that they could secure promotion as soon as Saturday afternoon, dependent on results in the other Championship games.
With a 19-point gap opened up on third-placed QPR, a Hoops loss to Bournemouth coupled with Derby failing to beat Middlesbrough would see the Foxes secure their return to the top tier for the first time since 2004.
Despite being on the cusp of glory, Pearson admitted that he was likely to simply enjoy an ordinary Saturday and not worry about results elsewhere.
"We're nearly there. Though it's not mathematical yet we've done our side of the bargain tonight. We're not dependent on what other people do.
"I might just go for a stroll, or go down to the pub.
"I certainly don't intend to go to a game. I can't see any mileage in me thinking about other fixtures.
"I keep talking about what we do ourselves. We'll go again for Tuesday."
"My job is to get this club promoted. Whether it's tomorrow, whether it's Tuesday, the next week, the week after it's irrelevant really. It's about getting promotion.
"I want us to win every game that we can and I want us to be champions, but we'll have to fight very hard to do that.
"We'll get promoted as and when we deserve it."