It was once derided as Parliament House's least favourite place to eat.
But now, the cafeteria affectionately known as "the Trough" is set for a makeover.
The Department of Parliamentary Services revealed the Staff Dining Room will undergo renovations over the next year, in its 2018-19 annual report.
Queen's Terrace Cafe - in the public area of Parliament House - will also be upgraded.
"To ensure ongoing management of the design integrity of Parliament House we will redesign and refurbish the Queen's Terrace Cafe and Staff Dining Room to improve customer experience and service efficiency," the department said.
"The change will restore the design integrity of these spaces close to their original form."
The department did not respond to questions about the time frame or budget for the renovations, nor about what the remodelled eateries would look like.
But it comes off the back of a quieter than usual year for the Trough.
While its staff served nearly 255,000 meals or beverages in 2018-19, that was down 8 per cent on the previous year.
While there were fewer sitting days due to the federal election - 46 versus 75 sitting days in 2017-18 - the Queen's Terrace Cafe recorded a 5 per cent increase in transactions in the same period, to more than 103,000.
There was also a 28 per cent increase in the number of transactions at the coffee cart - from almost 65,000 in 2017-18 to more than 83,000 in 2018-19.
It also follows a 2016 audit report that revealed The Trough was the most complained-about eatery on the hill.
Almost 39 per cent of respondents to a catering survey were dissatisfied or very dissatisfied with the Staff Dining Room, the Australian National Audit Office report said.
The Department of Parliamentary Services brought Parliament House catering in-house in December 2016.