In parliament, Labour's Wes Streeting spoke to the government for having had to "be dragged to do the right thing" in the past because of the free school meals and the controversy over last year's exam scores – which initially resulted in tens of thousands of grades initially were downgraded by an algorithm facing a U-turn by the government.
Shadowing secretary Kate Green previously said his report during the coronavirus pandemic was "shambolic" as her party said there was a "litany of government errors" regarding children and education.
"We cannot praise employees in schools and school principals in one breath and then defend the leadership to which they were subjected under this Secretary of State for Education in the other," Streeting told Parliament on Monday evening.
"If the Prime Minister had had a verdict, he would have dismissed the State Secretary, and if the State Secretary had been disgraced, he would have resigned."
Labor reiterated its call for Mr Williamson to issue a statement Tuesday saying there had been "a number of mistakes" – including free school meals and the provision of laptops.
"Although the government is ashamed of offering free school meals during the summer and Christmas holidays, it again refuses to support children now beyond mid-term in February," the party said.
She also accused the government of "not letting children study in school or from home" as students still lack equipment.
The DfE and Downing Street were asked to comment.
Labor Ms. Green called on Gavin Williamson to resign for the first time last week after heavy criticism of pictures of food parcels being distributed to families.
Mr Williamson said he was "absolutely disgusted" after seeing a picture of a meager package of groceries being delivered to a disabled mother of two.
The Education Minister also said companies would be "named and shamed" for failing to deliver against food standards and urged schools to terminate contracts if necessary.
The party used an Opposition Day debate in the House of Commons on Monday afternoon to say that eligible families should be guaranteed the full value of free school meals all year round, including during the holidays.
Downing Street accused Labor of doing a "political stunt" over planned debates over universal credit and free school meals.
"MPs are being told to abstain because today is not the day we will announce our next steps to increase the universal loan by £ 20," said Prime Minister's press secretary Allegra Stratton.
She added: "This is an opposition day debate. They are pacing families across the country so they are not able to get the food they might need during the February halftime if they don't the case is.
"Labor is doing a political stunt because they know that children who might go hungry during mid-February will not go hungry because of policies in place."