A freshman Brooklyn lawmaker is already seasoned at one thing — going through staff, including even the former beauty queen she hired to clean house for her, sources told The Post.

State Assemblywoman Mathylde Frontus’s two district offices are in chaos a little over a year after her election, with at least 11 employees either fired or quitting, according to several ex-workers and state payroll records.

The employment casualties include Chaka Laguerre, a lawyer and former Miss Jamaica-US who was hired as Frontus’s chief of staff in December in part to get rid of dead wood at the Democratic politician’s Bay Ridge and Coney Island offices, former staffers said.

Laguerre, who was being paid nearly $60,000 a year, lasted till Jan 16, sources said.

That’s when she and her boss got into a shouting match during an ugly phone fight in which the beauty queen’s job performance was questioned, they said. Laguerre declined comment.

The ex-staffers complained that Frontus — who came under fire from critics in November after The Post reported that she tried to score $100,000 in state funds for a think tank that doesn’t exist — is a “micromanaging’’ boss.

“It was a very toxic work environment for myself and other employees,” said a former underling who quit.

The revolving door of employees has meant that both constituents and lower-level elected officials typically can’t get help when calling or popping by the district offices — because staffers aren’t around to help them, said the ex-workers and two Brooklyn Democratic elected officials.

“It’s the constituents who are paying the price,” one of the pols said.

Meanwhile, Frontus has been the lead sponsor on two small-scale pieces of legislation approved in Albany under the Democratic-controlled body. Both bills extended existing environmental protocols.

Frontus told The Post that she doesn’t comment on personnel matters but claimed that she’s “always maintained a respectful and professional work environment.”

She said her offices are currently “full-staffed and busy assisting constituents of the 46th Assembly District.

“I have developed strong working relationships with elected officials in Brooklyn and in Albany,” she insisted last week.

“It is unfortunate if there are political rivals who seek to advance their own ambitions through anonymous personal attacks.”

Frontus won a November 2018 election to replace disgraced ex-Assemblywoman Pam Harris, who was convicted of misusing Superstorm Sandy repair funds.