Mr Lee confronted the staff member at the time, and later posted a photo of the receipt to Facebook, saying he was "infuriated" by what had happened.
But after seeing the name of the receipt, "STEVE C--K", he became outraged and confronted the cashier, who allegedly claimed there were three customers in the restaurant named Steve and he needed to differentiate between them.
"It made me even more upset that he was protecting his case rather than apologising so I lashed out and told him that it is extremely disrespectful to use such a derogatory slur".
"He eventually apologized, and although I was still very upset I made a decision to let the case go".
But when Lee says he heard the cashier cracking jokes with co-workers in the kitchen about the incident, and again used the word "c--k", Lee snapped and stormed the counter and began to curse out the cashier.
A Taco Bell cashier has been fired after a customer exposed that the employee printed out a racial slur on his receipt.
Asian-American medical In Young Lee was dining at Taco Bell when he told the staff his name was "Steve" to avoid the hassle of having to spell his real name.
In Young Lee, 25, said that he and his friends went to the fast-food chain at about 1:40 a.m. ET on Saturday and placed an order using the name "Steve" since cashiers often misspell or mispronounce his real name.
The manager came up to Lee to apologize for the slur but told him that it was disrespectful to snatch the food out of the employee's hands.
In May 2017, Neil Perry's Burger Project came under fire after a racist slur was spotted on a receipt in Melbourne, while there are countless examples of similar incidents in U.S. eateries.
"I want them to complete a mandatory training about racial consciousness", Lee said, according to CBS Philly. "This is when the manager approached me to calm me down".
'It was as if he was trying to defuse the situation by redirecting the blame on to me, ' Lee said. "Normally I would let things like this go but under the current political climate I find it very important to address such issues and voice them loudly and clearly", he said.
A Taco Bell Public Relations representative said in an email to The Daily Pennsylvanian, "We do not tolerate this behavior".
Taco Bell did not release the name of any of the employees involved.