He said he wants to open a restaurant on Newbury Street. But in the meantime, he said, there are enough projects to keep him busy at the Square location, which used to house Bruegger’s Bagels.

In six months, he said, he expects the City of Cambridge to extend his closing time to 3 a.m. Thursday to Friday.

“Almost a hundred people came by after 2 a.m.” on Saturday, said Espinoza, who stayed at the shop until 4 a.m. celebrating with his wife, two-year-old daughter and his brother and father, who came up from Mexico to attend the opening.

Espinoza said he hopes to obtain a liquor license from the city in six months so that he can serve wine and beer.

He said he plans to have a system where customers who buy four small bottles of beer called “Coronitas” get free nachos. A second round of beer would bring with it an order of free quesadillas, he said.

According to Espinoza, this system is a Mexican tradition.

“In Mexico, you don’t pay for the food, you pay for the drinks,” said Espinoza, who is originally from the Mexican state of Sinaloa.

Students said they are excited about delivery to dormitories, which should start early this week, and cost $15.

To further the Mexican atmosphere, Espinoza said he plans to hire a mariachi band to play live from 7 to 10 p.m. Friday through Saturday.

—Staff writer Eugenia B. Schraa can be reached at schraa@fas.harvard.edu.